Question

The state test scores for 12 randomly selected high school seniors are shown on the right....

The state test scores for

12

randomly selected high school seniors are shown on the right. Complete parts​ (a) through​ (c) below.

Assume the

The state test scores for

1212

randomly selected high school seniors are shown on the right. Complete parts​ (a) through​ (c) below.

Assume the population is normally distributed.

1430

1228

988

695

724724

830

722

750750

546

627

1447

943

the state test scores for

12

randomly selected high school seniors are shown on the right. Complete parts​ (a) through​ (c) below.

Assume the population is normally distributed.

normally dist

The state test scores for

1212

randomly selected high school seniors are shown on the right. Complete parts​ (a) through​ (c) below.

Assume the population is normally distributed.

1425

1223

982

698

729729

831

726

740740

545

622

1440

942

​(a) Find the sample mean.

(b) find the standard deviation

(c)

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