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vekshin1
3 years ago
7

Every 10th student to arrive at school Random or non-random

Mathematics
2 answers:
Anastaziya [24]3 years ago
7 0

Answer:

depending on time of when they arrive

Brrunno [24]3 years ago
7 0
I’m sure it is random
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laiz [17]

Answer:

Hope you understand not to sure but that's what I got

8 0
3 years ago
Cyber Monday Shopping A survey of U.S. adults found that of people said that they would get no work done on Cyber Monday since t
Delicious77 [7]

Complete question :

Cyber Monday Shopping A survey of 1000 U.S. adults found that 33% of people said that they would get no work done on Cyber Monday since they would spend all day shopping online. Find the 95% confidence interval of the true proportion.

Answer:

(0.301 ; 0.359)

Step-by-step explanation:

Sample size, n = 1000

Phat = 0.33

(1 - phat) = 1 - 0.33 = 0.67

Zcritical at 95% = 1.96

Confidence interval :

Phat ± margin of error

Margin of Error = Zcritical * sqrt[(phat(1 - phat)) /n]

Margin of Error = 1.96 * sqrt[(0.33 * 0.67) / 1000]

Margin of Error = 1.96 * 0.0148694

Margin of Error = 0.0291440

Lower boundary = (0.33 - 0.0291440) = 0.300856

Upper boundary = (0.33 + 0.0291440) = 0.359144

(0.301 ; 0.359)

3 0
3 years ago
What is the probability that X is between 11 and 71?
Verdich [7]

Answer:

60%

Step-by-step explanation:

3 0
4 years ago
B-12 0 or b-7&lt;-8<br> (5 points)
sdas [7]

Answer:

D

Step-by-step explanation:

b-1≥ 0 or b-7<-8

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3 0
3 years ago
A cylindrical bucket and spherical storage container are shown. The bucket has a radius of 6 inches and a height of 15 inches, a
inysia [295]

Answer:

To know if Nicholas is correct

4(540π) inches³ ≥ 2304π inches³

Unfortunately, 2160π inches³ is less than 2304π inches³. This means Nicholas is absolutely wrong .4 times the volume of the cylindrical bucket is less than the volume of the spherical tank.  

Step-by-step explanation:

The question wants you to look for the volume of the cylindrical bucket and the spherical bucket and know if 4 times the volume of the cylindrical bucket will fill the spherical tank.

volume of a cylinder = πr²h

where

r = 6 inches

h = 15 inches

volume of the cylinder bucket = πr²h

volume of the cylinder bucket= π × 6² × 15

volume of the cylinder bucket = π × 36 × 15

volume of the cylinder bucket = 540π inches³

volume of the spherical storage container

volume = 4/3πr³

r = 24/2 = 12 inches

volume = 4/3 × π × 12³

volume = 4/3 × π × 1728

volume = 6912π/3

volume = 2304π inches³

To know if Nicholas is correct 4(540π) inches³ ≥ 2304π inches³

Unfortunately, 2160π inches³ is less than 2304π inches³. This means Nicholas is absolutely wrong .4 times the volume of the cylindrical bucket is less than the volume of the spherical tank.  

8 0
4 years ago
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