It was also reported that 30% of those with an allergy in fact are allergic to multiple foods. if a child younger than 18 is randomly selected, what is the probability that he or she is allergic to multiple foods?

Describe in detail how you would construct a 95% confidence interval for a set of 30 data points whose mean is 20 and population standard deviation is 3. be sure to show that you know the formula and how to plug into it. also, clearly state the margin of error.

Which function in vertex form is equivalent to f(x) = x2 + 6x + 3? f(x) = (x + 3)2 + 3 f(x) = (x + 3)2 − 6 f(x) = (x + 6)2 + 3 f(x) = (x + 6)2 − 6

Which radical expression is a rational number? a. √ 360 b. √ 644 c. √ 225 d. √ 122