Question

The following table shows the number of ages of a group of 50 students
Age(in years)- 14(15),15(14),16(10),17(8),18(3)

Answer 1

The mean of the given data is 15.4 years.

Step-by-step explanation:

We are given the table that shows the number of ages of a group of 50 students below;

Since in the question it is not specified what needs to be calculated, so considering we have to find the mean of the above data below.

    Age in years (X)                    Frequency (f)              X $\times$ f

              14                                            15                         210

              15                                            14                         210

              16                                            10                         160

              17                                             8                          136

              18                                            3                          54      

            Total                                         50                       770      

Now, the formula for calculating the mean of a discrete frequency distribution is given by;

                   Mean, $\bar X$  =  $\frac{\sum X \times f}{\sum f}$

                                    =  $\frac{770}{50}$  =  15.4 years

Hence, the mean age of the students is 15.4 years.

Answer 2

Answer:

15.4

Step-by-step explanation:

we are given the table thatshows the number of angle of a group of 50 student below us in the question it is not specified what need to be calculated soap considering we have to find the mean of the above data below