Answer:
1+1= 11
1Step-by-step explanation:
I might be wrong so if i am right pls give me a thanks
39.65 is the approximate value of arccos0.77
Answer:
Step-by-step explanation:
given that certain tubes manufactured by a company have a mean lifetime of 800 hours and a standard deviation of 60 hours.
Sample size n =16
Std error of sample mean =
x bar follows N(800, 15)
the probability that a random sample of 16 tubes taken from the group will have a mean lifetime
(a) between 790 and 810 hours,
=
(b) less than 785 hours
, (c) more than 820 hours,
(d) between 770 and 830 hours
=
Answer:
Step-by-step explanation:
Multiply each number times 2 and then subtract from 29
3: 23
4: 21
5: 19
6: 17