What is the standard deviation of the data set? 7, 3, 4, 2, 5, 6, 9 round the answer to the tenths place.
a. 2.4
b. 5.0
c. 5.1
d. 5.8

The correct option is A.

Step-by-step explanation:

The given data is

7, 3, 4, 2, 5, 6, 9

The mean of the data is

The standard deviation of the data is

Using the below table put the values in the above formula,

Therefore the correct option is A.

18.8 cubic inches.

step-by-step explanation:

volume of a cone = πr²h

r = 1.5 inches

h = 8 inches

pi = 3.14

volume of our cone = × 3.14 × 1.5² × 8 = 18.84 square inches

or equals to 18.8 square inches rounded up to nearest tenth.

step-by-step explanation: