Answer:
3
Step-by-step explanation:
You find a common greatest factor, which in this case is 7. 1/4 is your answer.
This would be +2 so I believe it would be B.
Answer:
200.3 cm
210 cm
Step-by-step explanation:
to find the mean add all the numbers up and then divide it by the total number sampled
so we have
(198+199*3+200*2+201*5+202*2)/13
which gives you around 200.3
To find the height of the new player we have the following equation
let x be the height of the new player
solve for x and get
210 cm
<span>A ski lift is designed to hold 20,000 pounds, and claims a capacity of 100 persons. suppose the weights of all people using the lift have a mean of 190 pounds and with a standard deviation of 45 pounds. what is the probability that a random group of 100 people will total more than the weight limit of 20,000 pounds?
Given data:
Capacity, x=20,000 lbs
n=100
μ=190
σ=45
&se;=σ/sqrt(n)=45/sqrt(100)=4.5
s=population mean
population μ and σ are both known, use SE normally distributed.
P(s≤x/n)=P(s≤200)=Z((200-190)/4.5)=Z(2.222)=0.98687
=>
P(s≥x/n)=1-P(s≤x/n)=1-0.98687=0.01313
Answer: probability of 100 people exceeding 20,000 lbs is 1.313%</span>
