Choose the best estimate from the list below 3+10 is approximately equal to

It is not possible to calculate the percent of a number that is less than one. True or false?

Explain the three properties of interval estimates.

The marginal revenue of the xth box of flash cards sold is 500e-0.002x dollars per box. Find the revenue generated by selling items 101 through 4,000. (Round your answer to the nearest cent.)

A sample of 150 married women determined that 127 are happy in their marriage. A sample of 150 married men determined that 76% are happy in their marriage.   If you plan to test if the percent of married women who are happy in their marriage is greater than the percent of married men who are happy in their marriage.   What is the p-value? Write to 4 decimal places.

Suppose that you have bought a total of 3200 shares of stock of a particular company. You bought 1200 shares of stock at $17 per share, 700 shares of stock at $10 per share, and the remaining shares at $23 per share. What is the average price you paid per share of stock? (please round your answer to 2 decimal places)

A pharmacist estimates that a chemotherapy drug produces a 75% improvement in lung cancer patients. If this treatment is randomlygiven to 7 lung cancer patients (Approximate your answer to two decimal places) How many average patients reportimpiovement witi chemotherapy treatment?

Can someone explain the formulas needed and what variables go where?   445 randomly selected bulbs were tested in a laboratory, 316 lasted more than 500 hours. Find a point estimate of the proportion of all bulbs that last more than 500 hours.

how do I solve for the cumulative relative frequency?