Mathematics
Grade10
Easy

Question

The z-score can be used for _________

  1. Normal distributions   
  2. Skewed distributions  
  3. Only a 
  4. Both a and b

The correct answer is: Both a and b


    b o t h space a space a n d space b space comma space i s space t h e space c o r r e c t space c h o i c e
w e space u s e space z minus s c o r e space m o s t l y space f o r space n o r m a l space d i s t r i b u t i o n s
a l s o space w e space c a n space u s e space z minus s c o r e space f o r space s k e w e d space d i s t r i b u t i o n space

    T h e space s tan d a r d space n o r m a l space d i s t r i b u t i o n comma space a l s o space c a l l e d space t h e space z minus d i s t r i b u t i o n comma space i s space a space s p e c i a l space n o r m a l space d i s t r i b u t i o n space w h e r e space t h e space m e a n space i s space 0 space a n d space t h e space s tan d a r d space d e v i a t i o n space i s space 1.

    Related Questions to study

    Grade10
    Mathematics

    Complete the equation:
    z equals fraction numerator square over denominator text  Standard deviation  end text end fraction

    Complete the equation:
    z equals fraction numerator square over denominator text  Standard deviation  end text end fraction

    MathematicsGrade10
    Grade10
    Mathematics

    In a normal distribution each vertical represents ______ standard deviation.

    In a normal distribution each vertical represents ______ standard deviation.

    MathematicsGrade10
    Grade10
    Mathematics

    The empirical rule applicable to ________

    The empirical rule applicable to ________

    MathematicsGrade10
    parallel
    Grade10
    Mathematics

    The __________ counts how many standard deviations a data value is above or below the mean.

    The __________ counts how many standard deviations a data value is above or below the mean.

    MathematicsGrade10
    Grade10
    Mathematics

    The _____________ is the normal distribution with mean = 0 and standard deviation = 1

    The _____________ is the normal distribution with mean = 0 and standard deviation = 1

    MathematicsGrade10
    Grade10
    Mathematics

    What is the other name of the empirical rule?

    T h e space e m p i r i c a l space r u l e comma space a l s o space r e f e r r e d space t o space a s space t h e space t h r e e minus s i g m a space r u l e space o r space space 68 percent sign minus 95 percent sign minus 99.7 percent sign space r u l e comma
I T space i s space a space s t a t i s t i c a l space r u l e space w h i c h space s t a t e s space t h a t space f o r space a space n o r m a l space d i s t r i b u t i o n comma space a l m o s t space a l l space o b s e r v e d space d a t a space w i l l space f a l l space w i t h i n space t h r e e space s tan d a r d space d e v i a t i o n s space left parenthesis d e n o t e d space b y space sigma right parenthesis space o f space t h e space m e a n space o r space a v e r a g e space left parenthesis d e n o t e d space b y space µ right parenthesis.

t h e space e m p i r i c a l space r u l e space p r e d i c t s space t h a t space 68 percent sign space o f space o b s e r v a t i o n s space f a l l s space w i t h i n space t h e space f i r s t space s tan d a r d space d e v i a t i o n space left parenthesis µ space plus-or-minus space sigma right parenthesis comma
space 95 percent sign space w i t h i n space t h e space f i r s t space t w o space s tan d a r d space d e v i a t i o n s space left parenthesis µ space plus-or-minus space 2 sigma right parenthesis comma
space a n d space 99.7 percent sign space w i t h i n space t h e space f i r s t space t h r e e space s tan d a r d space d e v i a t i o n s space left parenthesis µ space plus-or-minus space 3 sigma right parenthesis

    What is the other name of the empirical rule?

    MathematicsGrade10

    T h e space e m p i r i c a l space r u l e comma space a l s o space r e f e r r e d space t o space a s space t h e space t h r e e minus s i g m a space r u l e space o r space space 68 percent sign minus 95 percent sign minus 99.7 percent sign space r u l e comma
I T space i s space a space s t a t i s t i c a l space r u l e space w h i c h space s t a t e s space t h a t space f o r space a space n o r m a l space d i s t r i b u t i o n comma space a l m o s t space a l l space o b s e r v e d space d a t a space w i l l space f a l l space w i t h i n space t h r e e space s tan d a r d space d e v i a t i o n s space left parenthesis d e n o t e d space b y space sigma right parenthesis space o f space t h e space m e a n space o r space a v e r a g e space left parenthesis d e n o t e d space b y space µ right parenthesis.

t h e space e m p i r i c a l space r u l e space p r e d i c t s space t h a t space 68 percent sign space o f space o b s e r v a t i o n s space f a l l s space w i t h i n space t h e space f i r s t space s tan d a r d space d e v i a t i o n space left parenthesis µ space plus-or-minus space sigma right parenthesis comma
space 95 percent sign space w i t h i n space t h e space f i r s t space t w o space s tan d a r d space d e v i a t i o n s space left parenthesis µ space plus-or-minus space 2 sigma right parenthesis comma
space a n d space 99.7 percent sign space w i t h i n space t h e space f i r s t space t h r e e space s tan d a r d space d e v i a t i o n s space left parenthesis µ space plus-or-minus space 3 sigma right parenthesis

    parallel
    Grade10
    Mathematics

    What is the symbol for standard deviation when the data set is the population?

    What is the symbol for standard deviation when the data set is the population?

    MathematicsGrade10
    Grade10
    Mathematics

    What is the symbol of meaning when data set is population?

    What is the symbol of meaning when data set is population?

    MathematicsGrade10
    Grade-8
    Mathematics

    If slope of a line is 4 and y-intercept made by the line is 2 then the equation of line will be __________

    Correct option is  (a)
    Given slope of the line (m) = 4 and y intercept of the line (c) is 2..
    The general equation of slope intercept form is y=mx+c
    putting m=4 and c=2 in the general equation
    y=4x+2
    the resultant equation will be y=4x+2

    If slope of a line is 4 and y-intercept made by the line is 2 then the equation of line will be __________

    MathematicsGrade-8

    Correct option is  (a)
    Given slope of the line (m) = 4 and y intercept of the line (c) is 2..
    The general equation of slope intercept form is y=mx+c
    putting m=4 and c=2 in the general equation
    y=4x+2
    the resultant equation will be y=4x+2

    parallel
    Grade-8
    Mathematics

    What is the slope of a line which is parallel to y-axis?

    Correct option is (c).
    The slope of line parallel to y axis is undefined or not defined .
    The line will be vertical.

    What is the slope of a line which is parallel to y-axis?

    MathematicsGrade-8

    Correct option is (c).
    The slope of line parallel to y axis is undefined or not defined .
    The line will be vertical.

    Grade-8
    Mathematics

    What is the slope of a line which is parallel to x-axis?

    Correct option is (b).
    The slope of line parallel to x axis will be 1
    The line be horizontal

    What is the slope of a line which is parallel to x-axis?

    MathematicsGrade-8

    Correct option is (b).
    The slope of line parallel to x axis will be 1
    The line be horizontal

    Grade-8
    Mathematics

    If slope of a line is 4 and x-intercept made by the line is 2 then the equation of line will be __________

    4 cross times 8Given
    Slope(m)=4 and x intercept is 2
    The general equation of slope intercept form is y=mx+c
    At x intercept y=0
    0=mx+c

    0=4*2 +c

    c=-8
    Therefor the equation will be y=4x-8

    If slope of a line is 4 and x-intercept made by the line is 2 then the equation of line will be __________

    MathematicsGrade-8

    4 cross times 8Given
    Slope(m)=4 and x intercept is 2
    The general equation of slope intercept form is y=mx+c
    At x intercept y=0
    0=mx+c

    0=4*2 +c

    c=-8
    Therefor the equation will be y=4x-8

    parallel
    Grade-8
    Mathematics

    The slope-intercept form of the linear equation is

    Correct option is (a).
    The slope-intercept form of the linear equation is y equals c over b minus fraction numerator a x over denominator b end fraction

    The slope-intercept form of the linear equation is

    MathematicsGrade-8

    Correct option is (a).
    The slope-intercept form of the linear equation is y equals c over b minus fraction numerator a x over denominator b end fraction

    Grade-8
    Mathematics

    The line that passes through the middle of the plotted points is known as

    Correct option is (c).
    The line that passes through the middle of the plotted points called Trend line

    The line that passes through the middle of the plotted points is known as

    MathematicsGrade-8

    Correct option is (c).
    The line that passes through the middle of the plotted points called Trend line

    Grade-8
    Mathematics

    A survey was made among students in a district and the scatter plot shows the level of reading and height for 16 students in the district. Describe the association and give a possible reason for it.

    Correct option is (d)
    When the level of reading is 2, heights of student is 50 inches
    When the level of reading is 5, heights of student is 55 inches
    When the level of reading is 7, heights of student is 60inches
    When the level of reading is 6, heights of student is  45,55,60 inches respectively.
    The graph shows when level of reading increases heights of students also increase , which means the garph is positive but for same level of reading there are more than one students of different heights which the association is non linear

    A survey was made among students in a district and the scatter plot shows the level of reading and height for 16 students in the district. Describe the association and give a possible reason for it.

    MathematicsGrade-8

    Correct option is (d)
    When the level of reading is 2, heights of student is 50 inches
    When the level of reading is 5, heights of student is 55 inches
    When the level of reading is 7, heights of student is 60inches
    When the level of reading is 6, heights of student is  45,55,60 inches respectively.
    The graph shows when level of reading increases heights of students also increase , which means the garph is positive but for same level of reading there are more than one students of different heights which the association is non linear

    parallel

    card img

    With Turito Academy.

    card img

    With Turito Foundation.

    card img

    Get an Expert Advice From Turito.

    Turito Academy

    card img

    With Turito Academy.

    Test Prep

    card img

    With Turito Foundation.