Answer:
Step-by-step explanation:
Given that X is a random variable representing the amount of sleep each adult in New York City got last night.
a) Normal distribution (by central limit theorem)
b) Sample mean will approach population mean mu
c) the standard deviation σx of the sampling distribution approach to σ/√n
d) The means are the same.
. The standard deviations are σ / √50 and σ / √100, respectively.
Answer:
thankyouuuuuuu.
Step-by-step explanation:
Answer:
1. 7
2. 1.25, 5/4, 1 1/4
3. -0.7
4. 20
5. 4.8
6. 30
7. 1.4
8. 28
9. -3.3 (the last 3 is infinite)
Answer:
The difference between the number of pounds of strawberries and the number of pounds of grapes in the mix is 33.42 pounds.
Step-by-step explanation:
I think that the right question is:
In the system of equations shown, x represents the number of pounds of strawberries, and y represents the number of pounds of grapes in a fruit mix. x y = 15.82 and x - 1.90y = 72.5. what is the difference between the number of pounds of strawberries and the number of pounds of grapes in the mix
Given that:
x represents the number of pounds of strawberries, and y represents the number of pounds of grapes in a fruit mix.
The equation relating x and y is given by the equation:

Subtracting equation 2 from equation 1, we get:

Putting y = 19.54 in equation 1 to get:

Therefore, the difference between the number of pounds of strawberries and the number of pounds of grapes in the mix is given by:

The difference between the number of pounds of strawberries and the number of pounds of grapes in the mix is 33.42 pounds.