Consider a weighted coin with 29% probability of landing heads. 

If this coin is tossed 5 times, what is the probability of getting exactly 2 heads?

Enter your answer as a decimal number.

In a test for one population mean, if the null hypothesis is rejected when the alternative hypothesis is true then:

If the confidence level of a CI increases then the value of the multiplier

The length of a pregnancy is normally distributed with mean 268 days and standard deviation 15 days. What is more likely to find?

Identify the type of sampling that is used in the following scenario. -- In order to find out whether vaccinations depends on race a sample is collected as follows: four ethnic groups are selected at random and a sample from each is included in the study. --

The anual income of single adults in Canada is normally distributed with a mean of $45,000 and a standard deviation of $10,000. It the z-score of the income of an individual is 3.5 then 

We could use a -test to investigate