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Marina CMI [18]
3 years ago
9

The average height of middle school students at Seton Grove School is found to be 5.25 feet. Which sample makes this generalizat

ion valid?
Mathematics
1 answer:
Ede4ka [16]3 years ago
6 0

Answer:

every other student who enters the school

Step-by-step explanation:

It is given that the middle school students have an average height of 5.25 feet. The students belongs to Seton Grove School.

It means that every student who comes to this school or enters the school has a height that is around 5 feet or more.

Thus we can say that every other student who enters the school has a average height of 5.25 feet.

This sample makes the generalization about the heights of the school students valid.

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What factor is paired with 10 to give 20?
matrenka [14]
The factor is 2. Just think, what is 20 divided by 10? The answer is 2.
5 0
3 years ago
How to calculate the decimal form of a given fraction. Please help ASAP mam/sir.​
kow [346]

In a fraction, the fraction bar means divided by. So to find the decimal form equivalent of a fraction like 1/4 you need to solve the math problem 1 dived by 4.

1 ÷ 4= 0.25

8 0
3 years ago
My son, Garrett, is 11 years old and has a piggy bank that he wants to fill. He started with 5 one dollar bills. Every Saturday
Debora [2.8K]

Answer:

1) M(x) = 5 + 3x

2) Dependent variable; 3 dollar bills

Independent variable: chores

3) Range is continuous

Domain is discrete

4) Range: 0 ≤ x ≤ 10

Domain: 5 ≤ M ≤ 35

Step-by-step explanation:

We are told he started with 5 number of $1 dollar bills and that every Saturday, he earns 3 more $1 dollar bill.

Thus, total number of $1 bills earned after x number of Saturdays(weekly) is;

M(x) = 5 + 3x

After 10 weeks, total number is;

M(10) = 5 + 3(10)

M(10) = 35

The dependent variable is the 3 more dollar bills earned each Saturday because it depends on chores he completed. While the independent variable is the chores because it doesn't depend on anything.

After 10 weeks, the range and domain will be;

Range: 0 ≤ x ≤ 10

For the; Domain:

For x = 1, M(0) = 5 + 3(0) = 5

M(10) = 35

Thus;

Domain: 5 ≤ M ≤ 35

The range could be all numbers in the interval from 0 to 10. Thus, it is continuous.

Whereas, the domain doesn't contain all the numbers in the interval from 5 to 35. Thus it is Discrete.

8 0
3 years ago
To determine whether they need to hire extra help for the holiday season, the managers of a railroad company want to estimate ho
nadezda [96]

Answer:

36

Step-by-step explanation:

Data provided in the question:

Standard error = 1.5 minutes             ( ∵ number are repetitive 1.51.5 )  

Standard deviation = 9 minutes        ( ∵ number are repetitive 99 )

Now,

Standard error = ( Standard deviation ) ÷ √n

Here,

n is the sample size

Therefore,

on substituting the respective values, we get

1.5 = 9 ÷ √n

or

√n = 9 ÷ 1.5

or

√n = 6

or

n = 6² = 36

3 0
3 years ago
Find the least common denominator and write the equivalent fractions 1/6 and 1/9​
Monica [59]

Answer:

1/6 - least common - 3/18

1/9 - least common - 2/18

3/18 is equivalent to 1/6

1/9 is equivalent to 2/18

Step-by-step explanation:

Rewriting input as fractions if necessary:

1/6, 1/9

For the denominators (6, 9) the least common multiple (LCM) is 18.

LCM(6, 9)

Therefore, the least common denominator (LCD) is 18.

Calculations to rewrite the original inputs as equivalent fractions with the LCD:

1/6   =   1/6   ×   3/3  =   3/18

1/9   =   1/9   ×   2/2  =   2/18

6 0
3 years ago
Read 2 more answers
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