Answer:
its b
Step-by-step explanation:
because each pair is inversed
I think answer is a. Please give me brainlest I hope this helps let me know if it’s correct or not
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:
Question 2
Step-by-step explanation:
divdtihcdyuvftujvfujvfubf
Answer:
b = 7
Step-by-step explanation:
3b - 4 = 17 is 7 because you are trying to isolate the variable. First, you add 4 to each side (17 + 4 and 4 + 4). Since, 17 + 4 is 21, 3b = 21. Now, since the inverse operation of multiplication is division, we divide 3 by both sides. 17 divided by 3 is 7. So b = 7.