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Lady_Fox [76]
3 years ago
9

Plsss help me! I’m stuck :(

Mathematics
1 answer:
bixtya [17]3 years ago
5 0

Answer:15 = 2   16 = -1.25

Step-by-step explanation:If you need any more help I'm usually available between 9 a.m - 3:50 pm

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a fraction has a denominator that is 4 greater than its numerator. it is equivalent to 9/15. what is the fraction?
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The following data represent the discrete probability distribution for the number of stars that reviewers have a first edition s
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Answer:

Step-by-step explanation:

given that the following data represent the discrete probability distribution for the number of stars that reviewers have a first edition statistics reference book.

Stars            5    4      3         2    1

Probability 25% 35% 20% 10% 10%

H0: Second edition is as per the above probabilities

Ha: atleast one is different from the above probability

(two tailed chi square test)

Alpha = 0.025

Assuming H0 to be true we calculate expected frequencies for total 80

chi square calculatons are shown below

df = 4

                  5     4         3 2 1      Total

Observed 28    28 13 6 5      80

Expected 20    28 16 8 8      80

chi square        

(O_E)^2/E 3.2 0 0.5625 0.5 1.125 5.3875

p value =0.1455

Since p value >0.025, we accept H0

The expected requency of three-star reviews is ________.16

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3 years ago
Help please ASAP!!!!!!
kobusy [5.1K]

Answer:

y=( )-2     y=2

Step-by-step explanation:

y=mx+b

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Answer:

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Step-by-step explanation:

Im Smart

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H(x)=-3,1 I think hope this helps
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