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tatuchka [14]
3 years ago
10

The instructor thinks that the students may have answered the questions by guessing, so that the probability that any given answ

er is correct is . Under this null hypothesis, the number of correct answers has a binomial distribution with trials and success probability . Perform a chi-square test of this hypothesis. Can you reject at the level? Use the -value method with the TI- Plus calculator.
Mathematics
1 answer:
Lisa [10]3 years ago
5 0

Answer:

hmmmm if theres choices its B

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6 0
3 years ago
Kinsey has a plan to save $60 a month for 16 months so that she can purchase a new television. After 11 months Kinsey has saved
kirza4 [7]

Answer:

b. Kinsey must save $72 per month to achieve her goal.

Step-by-step explanation:

<em>Goal over 16 months:</em> $60 x 16 = $960

<em>Collected after 11 months:</em> $600

  • $360 still needed
  • 5 months lefts

$360 ÷ 5 = $72

4 0
3 years ago
Write the ratio 7/8 in two different forms
Rainbow [258]
You can write it
7 to 8
7:8
5 0
3 years ago
Select the correct answer.
ratelena [41]

Answer:

A.x(x+12) -7(x+12)

Step-by-step explanation:

Factoring is the process of taking common terms out of an expression such that one can represent the expression as the result of smaller values. When given the following expression:

x^2 +5x - 84

First, represent the linear term as the sum of two terms such that each term shares a common factor with the other terms in the expression.

x^2 +12x - 7x - 84

Now take out the common factors,

x(x+12) -7(x+12)

Thus, the correct option is choice (A).

5 0
3 years ago
-4(3x-1)=12-8x and plz show how you got it
Inga [223]
Step 1:  -4(3x-1) becomes -12x+4
step 2: -12x+4=12-8x
step 3: add 12x to both sides, 4=12+4x
step 4: subtract twelve from both sides -8=4x
step 5: divide by 4, x=-2
3 0
3 years ago
Read 2 more answers
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