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vlabodo [156]
2 years ago
8

Which of the following are true? Select one or more:

Mathematics
1 answer:
melamori03 [73]2 years ago
6 0

Answer:

(c) The t-distribution is bell shaped

(e) The t-distribution has more values at the extremes than a standard normal distribution

(f) The t-distribution is centered at 0

Step-by-step explanation:

When the sample size is small or population variance is unknown, and we have to estimate population parameter then t- probability distribution is used.

 The t-distribution has properties as follows:

  1. The mean of t-distribution is 0. Thus, option (f) is correct.
  2. t-distribution is normal. Thus, option (c) is correct.
  3. As compare to standard normal distribution, t-distribution has more values at the extremes. Thus, option (e) is correct.
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Answer:

I think its is C

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There are ways to find the area under a normal curve.<br><br> True or false?
Mrrafil [7]

Your answer would be false.

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3 years ago
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Your credit card has a balance of $3300 and an annual interest rate of 14%. You decided to pay off the balance over two years. I
NARA [144]

9514 1404 393

Answer:

  • $137.90 more each month
  • $246.00 less total interest

Step-by-step explanation:

The amortization formula is ...

  A = P(r/12)/(1 -(1 +r/12)^(-12t))

for the monthly payment on principal P at annual rate r for t years. Here, we have P=3300, r = 0.14, and t=1, so the monthly payment is ...

  A = $3300(0.14/12)/(1 -(1 +0.14/12)^-12) ≈ $296.30

The payment of $296.30 is ...

  $295.30 -158.40 = $137.90 . . . more each month

The total amount paid is 12×$296.30 = $3555.60, so 255.60 in interest. This amount is ...

  $501.60 -255.60 = $246.00 . . . less total interest

3 0
2 years ago
PLEASE HELP GIVONG BRAINLIEST PLSSSSSSSHDHFHFHFJFJJFJRJRHR AHHHHHH
34kurt

Hi there hopefully this helps!

-----------------------------------------------------------------------------------------------------

Answer: C.

Explanation:

A New Leash On Life's Graph has: 3, 11, 21, 13, and 4.

The mean: 10.4

No Ruff Stuff's graph has: 1, 9, 16, 16, 8, 1, and 1.

The mean: 7.43.

3 0
3 years ago
If lines L and M are parallel, find x, y, and z. Explain your reasoning.
Katyanochek1 [597]

Answer:

The answer to your question is:

                                                     x = 43°, y = 137° and z= 43°

Step-by-step explanation:

-If lines L and M are parallel, that means that 43° and z are corresponding angles and they measure the same.

                                           z = 43°

- y and 43° are supplementary angles , so

                                          y + 43 = 180

                                          y = 180 - 43

                                          y = 137°

- x and z are vertical angles, so they measure the same

                                          x = z = 43°

 

8 0
3 years ago
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