Answer:
the lowest passing score would be x = 298
Step-by-step explanation:
School wishes that only 2.5 percent of students taking test pass
We are given
mean= 200,
standard deviation = 50
We need to find x
The area under the curve can be found by:
2.5 % = 0.025
So, 1- 0.025 = 0.975
We need to find the value of z for which the answer is 0.975
Looking at the z-score table, the value of z is: 1.96
Now, using the formula:
z = x - mean/standard deviation
1.96 = x - 200/50
=> 1.96 * 50 = x-200
98 = x - 200
=> x = 200+98
x = 298
So, the lowest passing score would be x = 298
18. part 1) x equals 4d square root 5 over 5 . it's a fraction
part 2) x equals 4 square root 5 over d. it's a fraction
part 3) x equals d square root 5 over 4. it's a fraction
part 4) x equals 4d square root 5 over 5 (same as part 1)
Answer: the answer is a hard doosie
Step-by-step explanation:
The three is in the ten thousands place; so it would equal thirty thousand. I'm not sure if that's how you wanted the answer though.
