Corinne is 6 years younger than her brother. which of the following expressions shows the sum of their ages if b represents corinne's brother's age?
a) b − 6
b) 2b − 6
c) 2(b − 6)
d) b ÷ 6

Now, martin can reasonably guess that the standard deviation for the entire population of people at the mall during the time of the survey is $1.50. what is the 95% confidence interval about the sample mean? interpret what this means in the context of the situation where 95 people were surveyed and the sample mean is $8. use the information in this resource to construct the confidence interval.

If you draw a card with a value of three or less from a standard deck of cards, i will pay you $43. if not, you pay me $11. (aces are considered the highest card in the deck.) step 1 of 2 : find the expected value of the proposition. round your answer to two decimal places. losses must be expressed as negative values.

What is the missing value in the proportion 4/5 = x/30