Answer:
no answer. Because 8-4 is not equal to 12
Step-by-step explanation:
Answer:
The point ”A“ is the point that corresponds to the last entry in the table.
Step-by-step explanation:
Answer:
B
Step-by-step explanation:
Answer:
a. 81.5%
Step-by-step explanation:
The z-score for 400 is ...
Z = (X -μ)/σ = (400 -500)/100 = -1
The z-score for 700 is ...
Z = (700 -500)/100 = 2
The empirical rule tells you that 68% of the distribution is within ±1σ of the mean, and 95% is within ±2σ of the mean. Half of that first number is in the range Z = -1 to 0, and half that second number is in the range Z = 0 to +2. So, the probability you want is ...
(1/2)(68%) + (1/2)(95%) = 81.5% . . . . matches choice A
I believe the answer is 55.49 inches
using the equation C^2/(4*3.14)
