Solve the problem. the scores on a certain test are normally distributed with a mean score of 43 and a standard deviation of 3. what is the probability that a sample of 90 students will have a mean score of at least 43.3162? 0.8413 0.3174 0.1587 0.3413

arithmetic sequence

step-by-step explanation:

given that a sequence has terms as

19, 15, 11,

this is represented on a graph

the pattern indicates that the sequence is an arithmetic sequence with i term

a=19 and common difference d =-4

any general term

thus the sequence is reduced by 4 for each successive term starting from 1 and nth term is

24-5n.

first negative term would start after 5th term

5th term =24-25< 0

from 5th term onwards the sequence would be negative.

the answer is a

step-by-step explanation: