The mean hi of a woman in the country ages 20 to 29 is 63.8 inches a random sample of 65 woman in the age group is selected what is the probability that the mean high for the sample is greater than 64 inches assume 2.83
the probability that the mean height for the sample is greater than 64 inches ?

Distance=slopeslope is -2/4which equals-1/2the distance between these two points is -1/2

First step is to get rid of the square root. remember that a square root is the same as raising to the (1/2) power. see below: multiply exponents per exponent rules to get: remember you subtract exponents from the denominator and add exponents in the numerator so: simplify further: so a is the correct choice. if you don't understand this google exponent rules and it will you understand. look at the image results.