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ale4655 [162]
3 years ago
12

I need help on number 11 and 18 on front of The page please Mean Median Mode and range please Thank you

Mathematics
1 answer:
PSYCHO15rus [73]3 years ago
5 0
11)7.5-1
=6.5 :)

18)81%? i did 75+100+70 then ÷3 i don't know if it's correct.
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Perform the indicated goodness-of-fit test.
Alex17521 [72]

Answer: Reject the null hypothesis. There is sufficient evidence to warrant rejection of the claim that the distribution of the sample is consistent with the distribution of the state populations.

Explanation:

The null and alternative hypotheses are:

H_{0}:The sample of 1000 subjects has a distribution that is consistent with the distribution of state populations.

H_{a}:The sample of 1000 subjects does not have a distribution that is consistent with the distribution of state populations.

Under the null hypothesis, the test statistic is:

\chi^{2}=\sum \frac{(O-E)^{2}}{E}

From the attachment, we clearly see the chi-square statistic is:

\chi^{2}=31.938

Now we have to find the chi-square critical value at 0.05 significance level for df = n - 1 = 4-1=3. Using the chi-square distribution table, we have:

\chi^{2}_{critical} =7.815

Since the chi-square statistic is greater than the chi-square critical value, we therefore reject the null hypothesis and there is sufficient evidence to warrant rejection of the claim that the distribution of the sample is consistent with the distribution of the state populations


8 0
2 years ago
The directions state that should mix four ounces of fertilizer for every ten gallons of water. The tank holds 50 gallons of wate
Dmitry [639]

Answer:20 ounces of fertilizer

Step-by-step explanation:

3 0
2 years ago
Which statement is true about ∠1 and ∠2?
gavmur [86]

Answer: Most likely A

Step-by-step explanation:

the reason I say its A is because of the face that congruent means in line not and straight. Though in your answer it shows that they are not alined so that leaves us with complemantary and the 2 complementary answer choices are

A & C but C is wrong because it say alternate which also means the that they would be 2 different angels so yeah I'm gonna go for A.

Good luck :)

5 0
2 years ago
!!Help!!<br>solve for x​
Murrr4er [49]

WXY = XYW ( = 41 ) ⇒  XYW is a isosceles triangle

⇒ XW = YW

⇒ 54 = 6x + 6

⇒ 6( x + 1 ) = 54

⇒ x + 1 = 9

⇒ x = 8

ok done. Thank to me :>

4 0
3 years ago
What is 948 divided by 1,000
lana [24]

948 divided by 1,000 is 0.948

4 0
3 years ago
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