Answer:
3/8
Step-by-step explanation:
3/4 is the same as 6/8.
6/8 divided by 2 is 3/8.
5.78♡︎♡︎ and 2.4♡︎♡︎ it’s possible i may be wrong but i’m pretty sure i’m right!✨ ♡︎Brainliest please!♡︎ Good luck with your test or homework hope this helped♡︎♡︎
Answer:
Step-by-step explanation:
Hello!
X: Cholesterol level of a woman aged 30-39. (mg/dl)
This variable has an approximately normal distribution with mean μ= 190.14 mg/dl
1. You need to find the corresponding Z-value that corresponds to the top 9.3% of the distribution, i.e. is the value of the standard normal distribution that has above it 0.093 of the distribution and below it is 0.907, symbolically:
P(Z≥z₀)= 0.093
-*or*-
P(Z≤z₀)= 0.907
Since the Z-table shows accumulative probabilities P(Z<Z₁₋α) I'll work with the second expression:
P(Z≤z₀)= 0.907
Now all you have to do is look for the given probability in the body of the table and reach the margins to obtain the corresponding Z value. The first column gives you the integer and first decimal value and the first row gives you the second decimal value:
z₀= 1.323
2.
Using the Z value from 1., the mean Cholesterol level (μ= 190.14 mg/dl) and the Medical guideline that indicates that 9.3% of the women have levels above 240 mg/dl you can clear the standard deviation of the distribution from the Z-formula:
Z= (X- μ)/δ ~N(0;1)
Z= (X- μ)/δ
Z*δ= X- μ
δ=(X- μ)/Z
δ=(240-190.14)/1.323
δ= 37.687 ≅ 37.7 mg/dl
I hope it helps!
Answer:
x = -2
Step-by-step explanation:
8x + 2 + 4 = 2x - 6
8x - 2x = - 6 - 2 - 4
6x = -12
x = -12/6
x = -2
Answer:
Step-by-step explanation:
the 2 friend eat 5/8
