Given a mean of 61.2 and a standard deviation of 21.4, within how many standard deviations of the mean do the values 45,78,62,90, and 31 fall?

a. 0

b. 1

c. 2

d. 3

What is a key purpose of using simulation when comparing two populations? A) Calculating theoretical probability B) Observing how probability works with real items C) Checking that the correct test statistics were used D) Finding a precise answer to

Which is different? Find "both" answers. a. Rewrite 1/3*3*3 using a negative exponent b. Write 3 to the negative third c. Write 1/3 cubed as a power d. Write (-3) * (-3) * (-3) as a power

Assume the weight of a randomly chosen american passenger car is a uniformly distributed continuous random variable ranging from 2500 pounds to 4500 pounds. what is the mean weight of a randomly chosen vehicle?

Clare made $160 babysitting last summer. She puts the money in the saving account that pays 3% interest per year.

Select the correct answer. What is the sum of this arithmetic series? 586 + 564 + 542 + ... + 212

Solve 25 = 5^x - 4 A. 1/2 B. 2 C. 4 D. 6

Adam is 2 years old. His sister lina is 1 year less than 3 times his age. write a numerical expression for linas age

If Angle 8 is congruent to angle 10 and Angle 1 is congruent to angle 7, which describes all the lines that must be parallel?

If one angle of a trapezoid is a right angle, the greatest number of additional angles a trapezoid might have is Select one: a. 3 b. 1 c. 2

Where a graph touches the y-axis