In a sample of 45 mice, a biologist found that 18 were able to run a maze in 30 seconds or less. Find the limits for the 95% confidence interval to estimate the population proportion of mice who can run a maze in 30 seconds or less. Group of answer choices

You can find the constant of proportionality by finding the ratio of

Marco has $38.43 dollars in his checking account. his checking account is linked to his amazon music account so he can buy music. the songs he purchases cost $1.29. part 1: write an expression to describe the amount of money in his checking account in relationship to the number of songs he purchases. part 2: describe what the variable represents in this situation.

Monthly water bills for a city have a mean of $108.43 and a standard deviation of $32.09. find the probability that a randomly selected bill will have an amount greater than $155, which the city believes might indicate that someone is wasting water. would a bill that size be considered unusual?