In a large class,the professor has each person toss a coin 200 times and calculate the proportion of his or her tosses that were tails.The students then report their results,and the professor records the proportions.One student claims to have tossed her coin 200 times and found 58% tails.What do you think of this claim? Explain your response.

A) This is a fairly unusual result.Her proportion is about 1.60 standard deviations above the mean.
B) This is a typical result.Her proportion is only 2.26 standard deviations above the mean.
C) This is a fairly unusual result.Her proportion is about 2.26 standard deviations above the mean.
D) This is an extremely unlikely result.Her proportion is about 200 standard deviations above the mean.
E) This is a typical result.Her proportion is only 1.60 standard deviations above the mean.

The t test for dependent means is used when you have ______.

A) two groups
B) one group
C) three groups
D) two or more groups

Perform the division. $\frac{9x^3-3x^2-3x+8}{3x+2}$

A) $9x^3-3x^2+3,x\ne -\frac{2}{3}$
B) $3x^2-3x+1+\frac{6}{3x+2}$
C) $3x^2+x+\frac{9}{3x+2}$
D) $3x^2-x+4,x\ne -\frac{2}{3}$
E) $3x^2+2x+3+\frac{7}{3x+2}$

When we test for differences between the means of two independent populations, we can only use a two-tailed test.

If the mean, median, and mode are all equal for a continuous random variable, then the random variable must be normally distributed.

Express the following ratio in its lowest terms: 0.091: 0.021: 0.042

Noori borrowed $5,000 for 4.5 years. For the first 2.5 years, the interest rate on the loan was 8.4% compounded monthly. Then the rate became 5.5% compounded semi-annually. What total amount was required to pay off the loan if no payments were made before the expiry of the 4.5-year term?