You got 8 questions wrong.
10% of 50 is 5.
x8 x8
________________
80% of 50 is 40.
84% of 50 is 42.
50-42= 8 questions wrong.
Answer:
a)
=0.89
b) 0.8413
Step-by-step explanation:
we know that




x - N(150, 20^2)

check

Answer:
b is correct
Step-by-step explanation:
Answer:
mode
Step-by-step explanation:
The mode is the number which appears most often.
The median is the middle number when the numbers are put in order.
The range is the largest number minus the smallest number.
The mean is all the numbers added together divided by the total amount of numbers.
hope this helps <3