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STALIN [3.7K]
3 years ago
7

A statistics class with 40 students consists of 30 students with no income, 10 students with small incomes from part-time jobs,

and a professor with a very large income that is well deserved. Which is better for describing the income of a typical person in this class: mean or median? Explain.
Mathematics
1 answer:
fgiga [73]3 years ago
4 0

The median would be better for describing the income of a typical person in the class because the professor's large salary skews the data to the right while all the students are towards the left and center.

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True or false? If false give counterexample The product of a rational number and an integer is not an integer ​
Rzqust [24]

Answer:

False

Step-by-step explanation:

Required

State if the product of rational numbers and integer is an integer

The statement is false and the proof is as follows

Literally, rational numbers are decimal numbers that can be represented as a fraction of two integers;

Take for instance: 0.2, 0.5, 2.25, etc.

When any of these numbers is multiplied by an integer, the resulting number can take any of two forms;

1. It can result to an integer:

<em>For instance;</em>

0.2 * 5 = 1

0.5 * 4 = 2

2.25 * 8 = 18

2. It can result in a decimal number

<em>For instance;</em>

0.2 * 3 = 0.6

0.5 * 5 = 2.5

2.25 * 7 = 15.75

From (1) above, we understand that the product can result in an integer.

Hence, the statement is false

4 0
4 years ago
Can i please get some help asap
eimsori [14]
If my math is right it should be b
8 0
3 years ago
$1,000 is invested at a rate of 3.25%, compounded annually. Identify the compound interest function that models the situation. T
Ulleksa [173]
The compounded interest function that models the situation is: A=P(1+ \frac{r}{n} )^{nt}
where
A is the final amount of money after t years.
P is the initial investment.
r is the interest rate in decimal form.
n is the number of times the interest is compounded per year.
t is the time in years.

We know for our problem that P=1000 and t=8. To convert the interest rate to decimal form, we are going to divide the rate by 100%:
r= \frac{3.25}{100}
r=0.0325
We also know that the interest is compounded anally, so it is compounded 1 time per year; therefore, n=1.
Lets replace the values in our formula to find the final amount after 8 years: 
A=P(1+ \frac{r}{n} )^{nt}
A=1000(1+ \frac{0.0325}{1} )^{(1)(8)}
A=1000(1+ 0.0325 )^{8}
A=1291.58

We can conclude that since we are dealing with compound interest we must use the function A=P(1+ \frac{r}{n} )^{nt}. Also, after 8 years the balance in the account will be $1291.58

3 0
3 years ago
What is the slope of the line given by the equation below?y + 5 = -22(x + 2)
tatyana61 [14]
If you use the distributive property and multiply -22 by x and 2 you will come out with y+5= -22x-44. Then subtract 5 and it would cancel out and you subtract it from the -44. -44-5 is equal to -49. So your equation would be y= -22x-49. This means that your slope would be -22. 
5 0
3 years ago
What is the equation of the axis of symmetry for the parabola y=1/2(x-3)^2+5
Rus_ich [418]

The general vertex form equation of the parabola is

y=a(x-h)^2+k

The Axis of Symmetry is given by

x=h

For the given equation the Equation of the Axis of symmetry for the parabola y=1/2(x-3)^2+5 as x=3.

5 0
3 years ago
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