Which of the following graph represents x=5

A market with 3900 operating firms has the following distribution

If the histogram is constructed with the above data, the highest bar in the histogram would correspond to the class

1. 1200-1800    
2. 150-300    
3. 800-1200    
4. 500-800    

The median from the following data is

1. 83.17    
2. 84.08    
3. 82.17    
4. 85.67    

What is the surface area of a triangular pyramid. with slant height 12 cm base area 24 cm² and primater 36 cm

1. 48 cm²
2. 36 cm²
3. 60 cm²
4. 24 cm²

John scored following marks in Term 1:  45, 50, 42, 38, 40, Find his mean deviation

1. 4.3
2. 3.8
3. 3.6
4. 4

Find MAD for first 3 multiplesof 5

1. 3.03
2. 3.33
3. 3.3
4. 3

Calculate MAD for first five whole numbers

1. 1
2. 1.2
3. 2
4. 2.1

Calculate MAD for first six natural numbers

1. 2.5
2. 3.5 
3. 1.5
4. 4.5

Find MAD for first five add numbers.

1. 2.4
2. 2.25
3. 5
4. 2.5

A signal which can be green or red with probability and respectively, is received by station and then transmitted to station 8 The probability of each station receiving the signal correctly is the signal received at staTtion8 is green, then the probability that the original signal was green is

A frequency distribution has arithmetic mean 7.85, then missing term is

1. 10 5    
2. 10 05    
3. 15 5    
4. 15    

Which of the following satisfies subtraction priority of equality.

1. 10 = 10
2. 10 - 2 = 12 - 3
3. 10 - 4 = 10 - 4
4. 10 - 2 = 8

Calculate the mad for first 5 prime numbers.

1. 5.4
2. 5.6
3. 2.72
4. 2.12

The mean of following frequency table is 50
The missing frequencies are

1. 28, 24    
2. 36, 28    
3. 24, 36    
4. None of these    

Find the least common denominator for the fractions  and 

1. 140
2. 154
3. 119
4. 160

Lucy wants to cover a custodial box  of a birthday present. the dimentions of the box are 10cm x 12cm x 8 cm. how much warping papers will she need.

1. 592 cm²
2. 595 cm²
3. 585 cm²
4. 590 cm²