Approximate the following binomial probability by the use of normal approximation. Twenty percent of students who finish high school do not go to college. What is the probability that in a sample of 80 high school students, 10 or less will not go to college? (Enter as a decimal rounding to 3 decimal places)

Title:

Step-by-step explanation:

It is given that, among 100 students, 20 students who finish high school, do not go to college.

Hence, the probability that a student will not go to school is .

We need to find the probability that 10 or less than 10 will not go to college.

The probability that all will go to college is .

The probability that only one will not go to college is .

Similarly, the probability of 10 or less than 10 will not go to college can be shown by ∑, where r = 0, 1, ....10.

beanburito

step-by-step explanation:

step-by-step explanation:

always plug in x. in this case, x equals 4.

i'm going to first solve 4(2+3x)

1) 4(2+3(4)) use pemdas to solve.

i'm going to multiply whats in the parenthesis first, so 3 times 4=12.

2)4 (2+12) i'm then going to multiply 4 by both numbers in the parenthesis (because multiplying comes before adding)

4 times 2= 8.   4 times 12= 48

4) (8+48)= 56 (answer)

i'm then going to solve 8+12x and plug in 4 for x.

1) 8 +12(4)

multiplying comes before adding, so i'm gonna multiply 12 and 4.

12 times 4= 48.

2) 8+48=56

both equal the same!