7. Identify the mean and standard deviation of the graph. 59
71
83
95
107
119
131
mean = 95; standard deviation = 12
mean = 83; standard deviation = 12
mean = 83; standard deviation = 8
O
o
mean = 95; standard deviation = 8

Ido not know i use to

820,000 is the answr

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.