Mathematics quiz on Probability and Statistics (28-09-2020)

In a simultaneous throw of two coins, the probability of getting at least one tail.

Three unbiased coins are tossed. What is the probability of getting at least two tail?

An unbiased dice is thrown. What is the probability of getting a number 1 or 5?

A child has a dice whose six faces show the letters as given below:

P, Q, R, S, T, P

The dice thrown once. What is the probability of getting P?

If the probability of Rohan winning a chess match is 0.83, what is the probability of his losing the match

For the given data 9, 11, 13, 𝑥 + 1, 15, x – 2, 7, if the mean is 12 then find the value of

Find the mean of the positive factors of 32

The table given below shows the number of bicycles sold by a shopkeeper in different months of a year.

The number of bicycles sold in month M3 is how much percentage less than the number of bicycles sold in month M6?

The line graph given below shows the number of students passed in different subjects.

If A is equal to the total number of students passed in subjects S1, S2 and S4 and B is equal to the total number of students passed in subjects S3, S5 and S6, then what is the difference between A and B?

What is the mean of the median, mode and range for the data given below?

11, 25, 0, 8, 25, 30, 44, 50, 30, 18, 20, 17, 11, 9, 24, 25, 29