What is the probability of flipping a coin 75 times and getting tails 40 times or fewer? round your answer to the nearest tenth of a percent.
a. 5.3%
b. 99.7%
c. 32.2%
d. 75.6%

Step-by-step explanation:

75.6% APEX 2019

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.