The heights of students at a large elementary school are normally distributed with mean of 54.6 inches and standard deviation of 5.7 inches. Use the figure of a standard normal distribution below to assist you in answering the following question. What is the approximate probability that a randomly selected student will be more than 51.75 inches tall? a. About 69%
b. About 31%
c. About 62%
d. About 67%
e. About 93%

answer: 180

step-by-step explanation:

12-2=10

20-2=18

10x18=180

, and

for

step-by-step explanation:

we can analyze the pattern at which the terms increase. let us denote , , , so that we can call

note the following:

the pattern: to get the next term value, we just add the next term number (e.g. 1st, 2nd, to the previous term value (term values are the given numbers in the question, 1, 3, 6, 10, 15,

from , to get to , we add

from , to get to , we add

etc.

we need to form a recursive formula, a formula that has the next term as a function of the previous term. so a possible recursive formula can be

, and for

b

step-by-step explanation:

i dont know

answer: graph 2

step-by-step explanation: