Question
In a lottery, there are 15 prizes and 30 blanks. A lottery is drawn at random. The probability of a getting a prize is________.
The correct answer is: ![1 third](data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAABIAAAAjCAYAAACZ6FpfAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAABGJhU0UAAAAXQ/cXWQAAAKNJREFUeNpjYMAP1IC4FogvMFAIFgNxGhD/Z6ASGDVo1KBBYdB/LHgUDCbwn0w8CgYLcATibUD8DYh/APEtIJ4AxMKkGrQfiIOAmA1JzACId1DLpZ+oYYgSEN+gxABxIE6EhpMXNbJMAaVeEgTiACA+CcT21AgjHqhhVAE/qGGIHjTASQIHgTgUiFmAmAma0u8DcTypBtkC8RaoV35AU7oPPg0ArQs4erRAu/EAAABidEVYdE1hdGhNTAA8bWF0aCB4bWxucz0iaHR0cDovL3d3dy53My5vcmcvMTk5OC9NYXRoL01hdGhNTCI+PG1mcmFjPjxtbj4xPC9tbj48bW4+MzwvbW4+PC9tZnJhYz48L21hdGg+q+QgMwAAAABJRU5ErkJggg==)
Total no. of tickets = 45
No. of tickets with prize = 15
The required probability =![15 over 45 equals 1 third](data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAD8AAAAjCAYAAAAjS9I/AAAACXBIWXMAAA7EAAAOxAGVKw4bAAAABGJhU0UAAAAXQ/cXWQAAAXlJREFUeNpjYMAP1IC4Fogv4JD/jwcPFCDkZqLBYiBOw+OZgfQkuW4mGQwlz1PdbaOeH/U8pvgvIP4ExNuAuAiIeUaK52GABYiNoaXsDSDWGEmeRwZuQHxwpHoeBH6MVM/rAPHdkeD5dUBsCcRMUOwB9XjQcPA8oWZrKBDfAuI/QPwOiFcBsekg8PRgaWqPglEwCkjrFo/m2cESA5TgweTm0WQ/CkbBKBgF2IAPjoJnMBVSjgyQ0aRv0C41qM8xAYiFKTEUNCx1DY/nBwvYD+1NsiGJGQDxDkoMnQnEyUPA87jAJ3I1WgPxXjweHeyeV2KAjCmSDEDJ5xIQyw9Bz4sDcSI033uRY0AHEOcQ8OhgG7pGL3QLyDFED4iPkhDLg23oWhCIA4D4JBDbk6oZpEmFzCQ+WIauYTXVSWp3NgiBH4Mo//+gVn4iBgyWoWtY9r1FK88PpqFrUFYLhZY/TNAW330gjqeV5wfT0LUtEG+BJvMf0BafDz4NAPmuwevZzrAlAAAAkXRFWHRNYXRoTUwAPG1hdGggeG1sbnM9Imh0dHA6Ly93d3cudzMub3JnLzE5OTgvTWF0aC9NYXRoTUwiPjxtZnJhYz48bW4+MTU8L21uPjxtbj40NTwvbW4+PC9tZnJhYz48bW8+PTwvbW8+PG1mcmFjPjxtbj4xPC9tbj48bW4+MzwvbW4+PC9tZnJhYz48L21hdGg+uR5GNAAAAABJRU5ErkJggg==)
Correct choice is 2 .
Related Questions to study
Probability cannot be ____.
Probability cannot be ____.
The stem in number 43 is________.
The stem in number 43 is________.
The probability of an impossible event is________.
The probability of an impossible event is________.
If an ordinary die is thrown, the chance of getting 6 is________.
If an ordinary die is thrown, the chance of getting 6 is________.
The range of 8, 9, 10, 11, 12, 13 is
The range of 8, 9, 10, 11, 12, 13 is
The mode of 1, 5, 6, 8, 9 is _____.
The mode of 1, 5, 6, 8, 9 is _____.
The median of the data 10, 39, 71, 42, 39, 76, 38, 25 is
The median of the data 10, 39, 71, 42, 39, 76, 38, 25 is
A group of customer service surveys was sent out at random. The scores were 90, 50, 70, 80, 60, 20, 90 and 20. The mean score is _______.
Mean of a data is the sum of all values divided by the total number of values, it is also called average.
A group of customer service surveys was sent out at random. The scores were 90, 50, 70, 80, 60, 20, 90 and 20. The mean score is _______.
Mean of a data is the sum of all values divided by the total number of values, it is also called average.
Certain event means there is a __ chance that an event will happen.
Probability of a sure event is 1 , for an impossible event it is 0 and for all other events its value lies between 0 and 1.
Certain event means there is a __ chance that an event will happen.
Probability of a sure event is 1 , for an impossible event it is 0 and for all other events its value lies between 0 and 1.
If a coin is tossed, then the probability of getting head is ______
Probability of a sure event is 1,for an impossible event it is 0 and for all other events its value lies between 0 and 1.
If a coin is tossed, then the probability of getting head is ______
Probability of a sure event is 1,for an impossible event it is 0 and for all other events its value lies between 0 and 1.