200+ Probability-and-statistics Questions

Probability-and-statistics Questions Set 21:

Quiz Mode

What is the Mode of the following data :

Solution:

If Mode is 8 and mean – median = 12 then find the value of mean ?

Solution:

The standard deviation of a data set is given as 34. What will be the variance of the data set ?

Solution:

Which of the following is not a measure of central tendency?

Mean

Median

Standard Deviation

Mode

Solution:

For a data set the value of median and mean are respectively 6 and 8, then find the value of mode.

Solution:

A coin is tossed 3 times. List the possible outcomes. Find the probability of getting 2 heads 1Tail.

1/8

7/8

3/8

5/8

Solution:

Find the average of first 20 terms of the arithmetic progression whose 7th term is 18 and the common difference is 3.

28.5

30.5

Solution:

There are four numbers in a set. The mean of the three smallest numbers is 9, whereas the mean of the three largest ones is 11.
What is the range of the data set ?

Can't Decide

Solution:

The average age of a man and his wife at the time of their marriage was 27 years. After 4 years of marriage, they have a one-year-old child. The average age of the family now is?

32 years

21 years

19 years

22 years

Solution:

First find the median of 36, 54, 77, 31, 48, 67, 25, 80, 45, 82, and 23.. If 82 is replaced with 89 and 31 is replaced with 33 in the data, then find the new median. What is the difference between the old median and the new median?

Solution:

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Probability-and-statistics Questions Set 21:

What is the Mode of the following data :

Solution:

If Mode is 8 and mean – median = 12 then find the value of mean ?

Solution:

The standard deviation of a data set is given as 34. What will be the variance of the data set ?

Solution:

Which of the following is not a measure of central tendency?

Solution:

For a data set the value of median and mean are respectively 6 and 8, then find the value of mode.

Solution:

A coin is tossed 3 times. List the possible outcomes. Find the probability of getting 2 heads 1Tail.

Solution:

Find the average of first 20 terms of the arithmetic progression whose 7th term is 18 and the common difference is 3.

Solution:

There are four numbers in a set. The mean of the three smallest numbers is 9, whereas the mean of the three largest ones is 11. What is the range of the data set ?

Solution:

The average age of a man and his wife at the time of their marriage was 27 years. After 4 years of marriage, they have a one-year-old child. The average age of the family now is?

Solution:

First find the median of 36, 54, 77, 31, 48, 67, 25, 80, 45, 82, and 23.. If 82 is replaced with 89 and 31 is replaced with 33 in the data, then find the new median. What is the difference between the old median and the new median?

Solution:

Related Question Sets:

Related Topics:

There are four numbers in a set. The mean of the three smallest numbers is 9, whereas the mean of the three largest ones is 11.
What is the range of the data set ?