In a normal distribution what percent of values fall within one standard deviation of the mean?

19.1%

15%

30%

68.2%

Which question is being asked in this story problem? Gunther has a collection of stamps and butterflies. He has a total of 80 stamps and butterflies combined. There are 36 butterflies in his collection.

In an inertia welding experiment, a sample of 50 welds made with a standard welding method were tested. The sample mean and sample standard deviation of the breaking strengths of these welds were found to be 94 ksi and 3 ksi, respectively.

X are 15 nonfiction books and 37 fiction books in the teachers collection. Which of the following expresses the ratio of fiction books to non fiction books in simplest form. A) 15:37 B) 15/37 C) 37:15 D) 3:5

Simplify the following? (x^4y) ^3

What is 4 divided by 1.52

Radius of a circle is 6.35m. What is the area

Solve for x and y 1.45 x + 1.55y = 20 and x + y = 29.80

If Practice Makes Perfect, And Nobody's Perfect. Why Practice?

Earning $12.00 an hour; working 80 hours in 2 weeks. What is your pay?

if the minimum wage in 2017 was $13.15 and in 2018 it is $14.45, what percent did minimum wage increase