10. how many inches longer is a hercules
beetle than a ladybug?
beetles by length
11. what is the difference between the
largest and the smallest stag beetles?
data
: length in inches
beetle
hercules beetle 6.3/4
ladybug 1/4
stag beetle 1.1/8to 2.4/8
12. how long are a hercules beetle and a
ladybug combined?

pretty sure 750 each month!

step-by-step explanation:

3x + 4y -25 =0 represents the amount of change sianna should recieve

it would be a on edgenuit y

the diagram below is your final answer

irst, find the z score of a score of 80. this is given by the formula z = (x-u)/o, where x is the score, u is the mean, and o is the standard deviation. this gives

z = (80-78)/12 = 1/6 = .1667

now, find what percentile a z score of 1/6 correlates to in the normal distribution.

a z score of 1/6 = .1667 is equivalent to the 56.36th percentile of the distribution. so the probability a score is over this is 1-.5636 = .4364

the mean of a sample mean is equal to the original mean. however, the standard deviation of a sample mean is equal to the original standard deviation divided by the square root of n (sample size). so the new standard deviation is 12/sqrt(16) = 3.

the new z score is 80-78/3 = 2/3 = .667. this is equivalent to the 74.86th percentile. so the probability that the mean will be greater than this score is 1-.7486 = .2514.