Question

In a set of 10 scores the value 2 occurs three times, the value 4 occurs
twice, 6 occurs twice, and 7 occurs three times. What is the mean of
the scores?

Answer 1

Answer:

= 4.7. Please mark me as brainliest.

Step-by-step explanation:

$n_1 = 2, f_1 = 3\\n_2 = 4, f_2 = 2\\n_3 = 6, f_3 = 2\\n_4 = 7, f_4 = 3$

Mean = $\frac{n_1f_1 + n_2f_2 ...}{f_1 + f_2 ...}$

= (2 x 3 + 4 x 2 + 6 x 2 + 7 x 3)/(3 + 2 + 2 + 3)

= (6 + 8 + 12 + 21)/10

= 47/10

= 4.7