True or False: A good choice for the number of class groups to use in constructing frequency distribution is to have at least 5 but no more than 15 class groups

Suppose you own a portfolio of British securities valued at about $500,000. The exchange rate is currently at $1 = £0.66. A currency contract on British pounds is set at 62,500 pounds

How many contracts must you purchase to protect at least 90% of your portfolio from exchange rate risk? A) 6 B) 5 C) 4 D) 3

The amount of bleach a machine pours into bottles has a mean of 36 oz. with a standard deviation of 0.15 oz. Suppose we take a random sample of 36 bottles filled by this machine. The sampling distribution of the sample mean will be approximately normal only if the population sampled is normal

Indicate whether the statement is true or false