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 

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

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.

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. --

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 anual income of single adults without a university degree in Canada is normally distributed with a mean of $35,000 and a standard deviation of $10,000. The average rent of a 1-bedroom condo in the Lower Mainland is about $1,500 a month. In addition the average cost of utilities (Internet, Heat, Hydro) is about $300 a month. What proportion of single individual will not be able to afford their rent and utilities?