Answer to Question #189707 in Statistics and Probability for prince

Question

A group of 100 individuals each made an estimate of the interpolation of the readings of a scale instrument. The values of the estimates and the number of individuals who made the same estimate are tabulated below. 

Reading : 6.2 6.3 6.4 6.5 6.6 6.7 6.8

Number of individuals : 4 11 18 24 21 14 8

(a) Draw the relative frequency curve.

(b) Calculate: i. the mean

ii. the standard deviation from the mean

Answer 1

The answer to your question is provided in the image: