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Katena32 [7]
3 years ago
13

What is the value of x? (1st image)

Mathematics
1 answer:
cluponka [151]3 years ago
8 0
2nd image

Yes, if you rotate it 360 degrees,
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All points of a sphere are equal distances to its center. <br> true<br> or <br> false
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Let x be a random variable from a binomial distribution with n = 40 and p = 0.9. If a normal approximation is appropriate, give
Dvinal [7]

Answer:

Step-by-step explanation:

Given that x is a random variable from a binomial distribution with n = 40 and p = 0.9.

We find that mean = np= 36 and variance = npq = 3.6

Std dev = square root of variance = 1.897

When we approximate binomial to normal we say

X' is Normal with mean = 36 and std dev = 1.897

X' is N(36, 1.897)

Note:

The condition for binomial approximating to normal is p should be close to 1/2

Here p is 0.9 and also nq=4 is very small.

So normal approximation may not give accurate results.

4 0
4 years ago
Help!!!! I need this quick!!
rosijanka [135]

Answer:

Whats the question

Step-by-step explanation:

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4 years ago
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Could someone please answer this, and give an explanation. So I can fully understand it.
svp [43]
So the graph shows the cost of the phone call on the y-axis and the length of the phone call on the x-axis.
The question ask is what is the least expensive per minute.
So your equation is cost/time.
Then you plug in the values of each point.
w=$1.25/2 minutes
x=$2/5 minutes
y=$2/10 minutes
z=$2.50/10.5 minutes
Solve each question-
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x=0.4
y= 0.2
z=0.24 (rounded)
These values show the cost per minute of each point. So, in order the answer the question which one cost the least per minute you would select the lowest value answer from the question of each point. Which would be y.

7 0
3 years ago
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