If the absolute value of the correlation is 0.9,the error in prediction will be ______.

A) high
B) low
C) very low
D) 0

Normal distributions are an important concept to researchers because ______.

A) there is only one normal distribution
B) they do not actually exist
C) they are the basis of statistical techniques used by researchers
D) they help define 'normal' and 'abnormal' behavior

The government has defined binge drinking as consuming at least 5 drinks in a row. Therefore, in this study, how would the null and alternative hypotheses be stated?

A) H₀: μ < 5; H₁: μ > 5
B) H₀: μ = 5; H₁: μ ≠ 5
C) H₀: μ ≠ 5; H₁: μ = 5
D) H₀: μ = 5; H₁: μ < 5

​An employee who sells advertising time for independent television stations is paid a salary of $2,000 per month. For short commercials (less than 30 seconds), the employee receives a 0.5% commission. For long commercials (30 seconds or longer), she receives a 1% commission. Compute her total pay for a month in which she sold $345,500 worth of time for short commercials, and $196,000 worth of time for long commercials.

Vince has $35,000 to purchase an annuity that will provide him with equal payments at the end of every three months for the next six years. If the funds earn 8% compounded quarterly, what is the size of the quarterly payments he will receive?

A) $2,335
B) $1,850
C) $3,734
D) $3,324
E) $7,571

In general, the binomial probability P(X x) is approximated by the area under the normal curve to the right of x - .5.