The average test scores for a particular test in algebra was 84 with a standard deviation of 5. What percentage of the students
scored higher than 89%? Please explain your answer.
1 answer:
Answer:
The percentage of the students scored higher than 89% is 15.87%
Step-by-step explanation:
we are given
The average test scores for a particular test in algebra was 84
so, mean is 84

a standard deviation of 5
so,

we have
x=89
now, we can use z-score formula

now, we can plug values


now, we can use calculator
and we get

So,
The percentage of the students scored higher than 89% is 15.87%
You might be interested in
Answer:
X= -5
Step-by-step explanation:
y varies directly with x,
so y=kx
-34=k×2
k= -17
85= -17× X
X= -5
31/7 = 4 3/7.....3/7 is less then 1/2....so the closest integer is 4
Fist break up each number in the hundreds column add the tens and the ones then add the hundreds to the previous answer
Answer:
51.63
Step-by-step explanation:
100.00
- 48.37
______
51.63
______