Answer: C) 0.8664.
Step-by-step explanation:
Given, The tread life of tires mounted on light-duty trucks follows the normal probability distribution with
.
Let
be the sample mean tire life of any 4 tires.
Now , the probability that the mean tire life of these four tires is between 57,000 and 63,000 miles will be :-

For Very likely , the probability should lie between 0.95 and 1.
Hence, the correct answer is C) 0.8664.
Answer: 14
Step-by-step explanation:
28 times 0.5. First do 28 times 5. Then do 28 times 0. When multiplying with zeros, any number times zero, is zero. Your answer is 14.
I need help with this question too but less hope we get a answer
Answer:
3.3 and 4.5
Step-by-step explanation:
T = large candles and s = small candles
3t + 5s = 6.40
4t + 6s = 7.50
^^ this would be ur system of equations