#### The mean of 6 observations is 17.5. If five of them are 14, 9, 23, 25 and 10, find the sixth observation.

**Solution:**

#### The mean height of 10 students is 151.8 cm. Two more students of heights 157.6 cm and 154.4 cm join the group. What is the new mean height?

**Solution:**

#### Find the probability of getting 53 Sunday’s in a leap year.

**Solution:**

**More Solutions:**

- Find the median of the following data (i) 3, 1, 5, 6, 3, 4, 5:
- Find the mode of the following data:
- Find the median and the mode of the data:
- The weights (in kg) of 15 students of a class are:
- The runs scored in a cricket match by 11 players:
- Find the mode for the following data:
- Tell whether the following is certain to happen.