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nalin [4]
2 years ago
13

Use the model below to calculate 2 3 × 3 4 2 3 × 3 4 . A rectangle is shown divided into 3 rows and 4 columns. 3 of the 4 column

s are shaded blue.
Mathematics
1 answer:
kifflom [539]2 years ago
4 0

Answer:

D

Step-by-step explanation:

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Out of 200 people sampled, 52 had kids. Based on this, construct a 99% confidence interval for the true population proportion of
iragen [17]

Answer:

0.180144 < p < 0.339856

Step-by-step explanation:

According to the Question,

  • Given That, Out of 200 people sampled, 52 had kids, Thus the proportion of the mean is 52/200 = 0.26

⇒ standard error of the sample is square root(0.26 * (1-0.26) / 200) = 0.031

⇒alpha(a) = 1 - 99/100 = 0.01

⇒critical probability(p*) = 1 - a/2 = 0.995

⇒assuming a normal distribution, look for the z-score associated with 0.995 cumulative probability , z-score = 2.576

⇒margin of error(ME) = 2.576 * 0.031 = 0.079856

  • the confidence interval is 0.26 + or - 0.079856

0.180144 < p < 0.339856

3 0
3 years ago
1/6x -5/9xy^2<br> Find the least common denominator for the two expressions.
eimsori [14]

Answer:

Step-by-step explanation:

6x=2×3×x

9xy²=3×3×x×y²

common denominator=2×3×3×x×y²=18xy²

4 0
4 years ago
Find the value of the variable and yz if y is between x and z xy=5p yz=p xy=25
fiasKO [112]
P is 5 , so yz=5 that’s the answer


they gave you that xy=25 and in the same time xy=5p , 5p should be 25 that’s why p is 5
7 0
4 years ago
Do parallel rays have to be coplanar?
Vikki [24]
No I belive they don’t have to be
5 0
4 years ago
Can someone help me with the question in the image please i will mark as brainlyest if correct
nadya68 [22]

Answer:

a

Step-by-step explanation:

3 0
4 years ago
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