Answer:
B. 0.83
Step-by-step explanation:
I calculated it logically
Answer:
Step-by-step explanation:
Assuming a normal distribution for the amount spent by Canadian households for high-speed broadband access, the formula for normal distribution is expressed as
z = (x - u)/s
Where
x = amount spent by the Canadian households.
u = mean amount spent monthly.
s = standard deviation
From the information given,
u = $80.63 CDN
s = $27.32 CDN
We want to find the probability that the average amount will exceed $85. It is expressed as
P(x greater than 85) = 1 - P(x lesser than or equal to 85)
For x = 85
z = (85 - 80)/27.32 = 0.18
Looking at the normal distribution table, the corresponding z score is 0.57142
P(x greater than 85) = 1 - 0.57142 = 0.43
Answer:robert=120lbs,genesis=100
Step-by-step explanation:take genesis as (x) and since robert is 20 pounds heavier he would be (X+20) so:
x+(x+20) =220lbs
2x+20=220
2x=220-20
2x=200
x=100 which we took as genesis
which leaves robert's weight 100 +20 =120
A) No, because 62 + 9 = 122
Take the numbers out of the problem and then solve and put the decimal place two spaces behind the original place and it is now a percent
