A sample of 60 Grade 9 students' ages was obtained to estimate the mean age of all Grade 9 students. Consider that LaTeX: \frac{ }{X}X = 15.3 years and the population variance is 16. (Note: Standard Deviation is the square root of variance). Assume that the distribution is normal.

part a

in a city ice cream is mostly only bought when the temperature is very high as ice cream cools down our

so we can derive the conclusion that as the temperature increases the number of ice creams sold also increases

part b

y intercept is 5

slope is 2

happy to

pls mark as brainliest

a

step-by-step explanation:

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80x^8−68x^6+16^5−20x^4−4x^3+8x^2

hope i'm right lol