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mrs_skeptik [129]
3 years ago
9

PLEASE HELP AHHH I-. I need help lol

Mathematics
2 answers:
tino4ka555 [31]3 years ago
8 0

Answer:

3

Step-by-step explanation:

Pie3 years ago
4 0

Answer:

264

Step-by-step explanation:

do 20 mulitplyed by 30 then subtracted it by 336

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Irina-Kira [14]
<span>a whole number; a number that is not a fraction.</span>
6 0
3 years ago
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a study is planned to compare the proportion of men who dislike anchovies with the proportion of women who dislike anchovies. th
e-lub [12.9K]

Answer:

d. No because n·(1 - \hat p) = 8.96 is less than 10

Step-by-step explanation:

Question options;

a. Yes because the sample sizes of both groups are greater than 5

b. Yes, because in both cases n·\hat p > 10

c. Yes, because we know that the population is evenly distributed

d. No, because the n·(1 - \hat p) is less than 10

Explanation;

The given data are;

The number of men in the sample of men, n₁ = 41

The proportion of men who dislike anchovies, \hat p_1 = 0.67

The number of women in the sample of women, n₂ = 56

The proportion of men who dislike anchovies, \hat p_2 = 0.84

The assumptions for an analysis of the difference between means using a T-test are;

1) The data should be from a random sample of the population

2) The variables should be approximately normal (n·\hat p ≥ 10, and n·(1 - \hat p) ≥ 10)

3) The scale of the data is a continuous ordinance scale

4) The sample size should be large

5) The sample standard deviations should be approximately equal

From the requirement for normality, we have;

For the sample of men, n₁·\hat p₁  = 41 × 0.67 = 24.47 > 10

n₁·(1 - \hat p₁) = 41 × (1 - 0.67) = 13.53 > 10

For the sample of women, n₂·\hat p₂  = 56 × 0.84 = 47.04 > 10

n₂·(1 - \hat p₂) = 56 × (1 - 0.84) = 8.96 < 10

Therefore, the for n₂·(1 - \hat p₂), the sample does not meet the requirement for normality

The correct option is d. No because n₂·(1 - \hat p₂) = 8.96 is less than 10

3 0
2 years ago
write an even number with a 7 in the hundred place and a odd in the thousends place and is a multiple of 10
Marta_Voda [28]
5,722 should be the answer.
6 0
3 years ago
Please help me fast and show all your work please thx ​
laiz [17]

Answer:

area of trapezoid/trapezium = \frac{h}{2} *(a+b)

h=height

a and b are the parallel sides (top 2.5 and bottom 6 in this pic)

so \frac{5}{2} *(2.5+6) = \frac{5}{2}*(8.5) = \frac{42.5}{2}  = 21.25

3 0
3 years ago
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The first jumbo jet was the Boeing 747, which is 70.5 meters long. The wingspan of the 747 is 60 meters. A model 747 has a wings
yanalaym [24]

Answer:

94cm

Step-by-step explanation:

wingspan         length

60 meters        70.5 m

----------------- = ----------------

80 cm                   x

Cross multiply

(60 m)x = (70.5 m)(80 cm)

Solve for x by dividing both sides of equation by 60 m:

x = (70.5 m)(80 cm) / (60 m) = 94 cm

The length of the model is 94 cm.

7 0
2 years ago
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