you have to add 90 +90 3 times then theres your answer :)
Answer:
1445
Step-by-step explanation:
2601*(9/9-4/9)
Wait ill come right back at u let me solve
<span>It can be assumed that the sample mean would would be approximately normal by the mean distribution theorem. The mean distribution theorem states that a large enough sample size will have a distribution and mean approximately the same as the population mean. A sample of 250, half the size of 500, is of sufficient size to assume the distribution mean will be approximately normal like the population mean.</span>