SAT scores were originally scaled so that the scores for each section were approximately normally distributed with a mean of 500 and a standard deviation of
100. Assuming that this scaling still applies, Use a calculator to find the probability
that a randomly-selected SAT student scores more than 620.
a) 38.4%
b) 11.6%
c) 88.4%
d) 61.6%

You buy five cds at a sale for $5.95 each. write an expression for the total cost of the cds. then use the distributive property and mental math to evaluate the expression.

Annabelle's homework is 75% it took her three hours how long should she estimate it will take her to complete her homework.

Identify the statement below as either descriptive or inferential statistics. upper a certain website sold an average of 117 books per day last week. is the statement an example of descriptive or inferential statistics? a. it is an example of descriptive statistics because it uses a sample to make a claim about a population. b. it is an example of inferential statistics because it uses a sample to make a claim about a population. c. it is an example of inferential statistics because it summarizes the information in a sample. d. it is an example of descriptive statistics because it summarizes the information in a sample.