Question

Type the correct answer in the box. Use numerals instead of words. If necessary, use / for the fraction bar. Name Score Julia 650 Andrew 550 Jason 380 Cathy 720 Jessica 710 Robert 550 The table gives the scores of 6 students from a class of 25 in a competitive exam. The point estimate of the mean score for the students is . (Round off your answer to the nearest tenth.)

Answer 1

593.3

Explanation:

Assuming random sample, assuming "point estimate of mean score" means "estimate of mean score in points",

(650+550+380+720+710+550)/6 is 593.3

Sample size 6 population size 25 is irrelevant except to note estimate might not be very good.

Answer 2

Mean score for the students = 593.3

Explanation:

Name Score

Julia 650

Andrew 550

Jason 380

Cathy 720

Jessica 710

Robert 550

1) Mean Score =
`(Sum of the scores)/(Total number of students)`

=
`(650+550+380+720+710+550)/(6)`

= 593.33

2) Upon rounding off to the nearest tenth, we get

Mean Score = 593.3 (since the hundredth digit is lesser than 5, the tenth digit is not increased)