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
=
Step-by-step explanation:
Given Input Value = 50%
Place the Percentage Value at the top over 100.
50/100
The given fraction is
50/100
On <u>reducing</u> the fraction, we get the exact form
50/100
which would equal 1/2.
The exact form of the fraction is
1/2
In the decimal form, the fraction can be written as 0.5.
namely, how many times does 1/4 go into 3/8?
![\bf \cfrac{3}{8}\div \cfrac{1}{4}\implies \cfrac{3}{\underset{2}{~~\begin{matrix} 8 \\[-0.7em]\cline{1-1}\\[-5pt]\end{matrix}~~}}\cdot \cfrac{~~\begin{matrix} 4 \\[-0.7em]\cline{1-1}\\[-5pt]\end{matrix}~~}{1}\implies \cfrac{3}{2}\implies 1\frac{1}{2}](https://tex.z-dn.net/?f=%5Cbf%20%5Ccfrac%7B3%7D%7B8%7D%5Cdiv%20%5Ccfrac%7B1%7D%7B4%7D%5Cimplies%20%5Ccfrac%7B3%7D%7B%5Cunderset%7B2%7D%7B~~%5Cbegin%7Bmatrix%7D%208%20%5C%5C%5B-0.7em%5D%5Ccline%7B1-1%7D%5C%5C%5B-5pt%5D%5Cend%7Bmatrix%7D~~%7D%7D%5Ccdot%20%5Ccfrac%7B~~%5Cbegin%7Bmatrix%7D%204%20%5C%5C%5B-0.7em%5D%5Ccline%7B1-1%7D%5C%5C%5B-5pt%5D%5Cend%7Bmatrix%7D~~%7D%7B1%7D%5Cimplies%20%5Ccfrac%7B3%7D%7B2%7D%5Cimplies%201%5Cfrac%7B1%7D%7B2%7D)
Answer:
1. 0.25
2. 1.25
3. -0.4285714286
4. -1
5. s=0
6. f=0
7. f= 8/9
8. p = -3.666666667
9. v = 18
10. g= 2.5
Step-by-step explanation: Please brainliest!
