Answer:24x+16
Step-by-step explanation:
Answer:
the answer is number 1
Step-by-step explanation:
integers are whole numbers
Answer:
(n / 7) + 10 = x
Step-by-step explanation:
Answer:
100000 pass codes
Step-by-step explanation:
the pass code form is: abcde
a: 10 numbers to choose
b: 10 numbers
c: 10 numbers
d: 10 numbers
e: 10 numbers
so there are 10^5 = 100000 pass codes exist
Answer:
Cutoff for a failing score is 49 and 2.28% students failed.
Step-by-step explanation:
We have been given that scores on a psychology exam were normally distributed with a mean of 57 and a standard deviation of 4.
2 standard deviation below mean would be,

Therefore,Cutoff far a failing score is 49.
Now let us find out the z-score for our given values,


Now let us look up the probability from normal distribution table.

Therefore, percentage of students failed is 2.28%.