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Setler79 [48]
3 years ago
12

When it rains, I get tired. It's raining today. I'm going to take a nap.

Mathematics
1 answer:
ratelena [41]3 years ago
8 0
I like naps
this has to be at least 20 words smh
gimme me five points hehe
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Point O is the center of the square ABCD. Point E is the midpoint of line segment CD. The area of square ABCD is 24, what is the
GalinKa [24]

Answer: You divided 24 by 3 then you take the answer

Step-by-step explanation:I hope it help

5 0
3 years ago
John is hiking a trail that is 0.8 miles long he hikes the first 2/10 of the distance by himself he hates the rest of the way wi
jenyasd209 [6]
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3 years ago
The General Social Survey asked a large number of people how much time they spent watching TV each day. The mean number of hours
DerKrebs [107]

Answer:

Yes, we can conclude that the population standard deviation of TV watching times for teenagers is less than 2.66

Step-by-step explanation:

H0 : σ² = 2.66²

H1 : σ² < 2.66²

X²c = (n - 1)*s² ÷ σ²

sample size, n = 40

Sample standard deviation, s = 1.9

X²c = ((40 - 1) * 1.9²) ÷ 2.66²

X²c = 140.79 ÷ 7.0756

X²c = 19.897

Using a confidence level of 95%

Degree of freedom, df = n - 1 ; df = 40 - 1 = 39

The critical value using the chi distribution table is 25.6954

Comparing the test statistic with the critical value :

19.897 < 25.6954

Test statistic < Critical value ; Reject the Null

Hence, we can conclude that the population standard deviation of TV watching times for teenagers is less than 2.66

8 0
3 years ago
Angle ABD and angle BDE are supplementary. Find the measures of both angles.
marishachu [46]
By definition of supplementary angles,
∠ABD + ∠BDE = 180
5x + 17x - 18 = 180
22x = 198
x = 9

∠ABD = 5(9) = 45°
∠BDE = 180 - 45 = 135°
3 0
3 years ago
Michela says that the modes of the two data are the same so the median and mean must also be the same. what is michela’s error?
aev [14]

Answer: median and mean are the same

Step-by-step explanation:

The error committed by Michela is by saying

The median and mean are the same.

Because in statistics, we can't use mode to predict the median and the mean.

7 0
3 years ago
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