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Levart [38]
3 years ago
12

A spinner is divided into an unknown number of equal-sized sections. Your friend spins it 100 times and tells you that it landed

on section one 25 times. What is the best estimate of the number of sections the spinner is divided into? 4 25 100 400
Mathematics
2 answers:
andrezito [222]3 years ago
8 0

Answer:

4

Step-by-step explanation:

the more sections there are the less of a chance the same section ould be landed on so many times. Its almost impossible to land on one of 400 25 times

balu736 [363]3 years ago
3 0

Answer:

106,275,100

Step-by-step explanation:

you say if 100= 25 what about 4 25 100 400

=106,275,100

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The perimeter of a circle is the circumference.

The formula for circumference is C = 2 x PI x r

The radius is given as 6 feet.

The exact answer is: Circumference = 2 x PI x 6 = 12PI

An answer rounded to 2 decimal places = 37.70 feet.

7 0
3 years ago
ecn 221 The sodium content of a popular sports drink is listed as 206 mg in a 32-oz bottle. Analysis of 14 bottles indicates a s
spayn [35]

Answer:

H_{0}: \mu = 206\text{ mg}\\H_A: \mu \neq 206\text{ mg}

Step-by-step explanation:

We are given the following in the question:

Population mean, μ =  206 mg

Sample mean, \bar{x} = 217.5 mg

Sample size, n = 14

Sample standard deviation, s = 14.9 mg

Claim:

The mean sodium content for the sports drink is not 206 mg. It is different than 206 mg.

Thus, we design the null and the alternate hypothesis

H_{0}: \mu = 206\text{ mg}\\H_A: \mu \neq 206\text{ mg}

We use two-tailed t test to perform this hypothesis.

     

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3 years ago
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Svetlanka [38]
I think the answer is 90 but I am not sure
3 0
3 years ago
A new car that is a gas- and electric-powered hybrid has recently hit the market. The distance travelled on 1 gallon of fuel is
Vladimir79 [104]

Answer:

Step-by-step explanation:

Since the distance travelled on 1 gallon of fuel is normally distributed, we would apply the formula for normal distribution which is expressed as

z = (x - µ)/σ

Where

x = the distance travelled.

µ = mean distance

σ = standard deviation

From the information given,

µ = 50 miles

σ = 8 miles

A) P(x > 53) = 1 - P(x ≤ 53)

For x = 53,

z = (53 - 50)/8 = 0.38

Looking at the normal distribution table, the probability value corresponding to the z score is 0.648

B) P(x < 42)

For x = 42

z = (42 - 50)/8 = - 1

Looking at the normal distribution table, the probability value corresponding to the z score is 0.1587

C) P(44 ≤ x ≤ 53)

For x = 44

z = (44 - 50)/8 = - 0.75

Looking at the normal distribution table, the probability value corresponding to the z score is 0.2266

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z = (55 - 50)/8 = 0.63

Looking at the normal distribution table, the probability value corresponding to the z score is 0.7357

Therefore,

P(44 ≤ x ≤ 53) = 0.7357 - 0.2266 = 0.5091

8 0
3 years ago
The families in the small town of Tinyville have an average of $42, 575. The Martin family of Tinyville earns $67, 273 per year.
Aleksandr-060686 [28]
$25,148 ($25,000) nearest thousand
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