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3 years ago

Which statistical measure changes when every number in a data set is increased by 10

Mathematics

2 answers:

jarptica [38.1K]3 years ago

8 0

Answer:

There are various statistical measures that can be affected by change of origin, they include; the mode, the median, the mean

Step-by-step explanation:

The variance and standard deviation remain unchanged

timama [110]3 years ago

7 0

Answer:

All will change except, range, IQR, variance and std deviation

Step-by-step explanation:

Given a data set we can find descriptive statistics such as mean, median, mode, std deviation, variance, max, minimum etc.

If every number in a data set is increased by 10 we find

that variance and std deviation will not change.

This is because when mean varies by +10 and each entry by +10 variance remains the same and hence std deviation remains the same.

Next is the interquartile range, which is the difference between I quartile and II quartile, this will remain the same

Similarly, range the difference between minimum and maximum will remain the same.

Except these four all others, namely, mean, median, mode, min, maximum , I quartile and III quartile will all increase by 10.

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Ye has his own business. He checks his sales receipts three times a day, his afternoon sales were 50$ more than his mourning sal

IRINA_888 [86]

Answer:

The answer is 150

Step-by-step explanation:

It's 150 because ye evening sales are three times of his afternoon sales.

SO that means you have to times 50x3=150 or you can add 50+50+50=150. there is your answer.

3 0

3 years ago

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Please help me- thank you

Kruka [31]

Answer:

a) The profit will be: $Profit=y^2-99500$

b) Since the profit is -9500 (negative) so, company will not gain any profit if they produce 300 bicycles.

Step-by-step explanation:

Cost of Bicycles= $y^2+10y+100,000$

Revenue generated = $2y^2+10y+500$

Find a polynomial that represent profits

The formula used for finding profit is:

$Profit = Total \ Revenue - Total \ Cost\\Profit= 2y^2+10y+500 - (y^2+10y+100,000)\\Profit= 2y^2+10y+500 - y^2-10y-100,000\\Profit=2y^2-y^2+10y-10y+500-100,000\\Profit=y^2-99500$

So, the profit will be: $Profit=y^2-99500$

If the company can produce bicycles y= 300

The profit will be:

$Profit=y^2-99500\\Profit=(300)^2-99500\\Profit=90000-99500\\Profit=-9500$

Since the profit is -9500 (negative) so, company will not gain any profit if they produce 300 bicycles.

5 0

3 years ago

Determine the mass of a solid steel ball that has a diameter of 10 cm. The density of pure steel is 8.09 g/cm3

Basile [38]

Answer:

<em>The mass of the steel ball is 4,235.9 gr</em>

Step-by-step explanation:

<u>Density</u>

The density ρ of a substance is a measure of its mass per unit volume:

$\displaystyle \rho=\frac{m}{V}$

If the density and the volume are given, the mass can be calculated by solving the above formula for m:

$m=\rho.V$

We know the density of pure steel ρ=8.09 gr/cm3 and the diameter of a solid steel ball d=10 cm.

We need to calculate the volume of the sphere:

The volume of a sphere of radius r is given by:

$\displaystyle V=\frac{4}{3}\cdot \pi\cdot r^3$

The radius is half the diameter: r= 10/2 = 5 cm. Thus:

$\displaystyle V=\frac{4}{3}\cdot \pi\cdot 5^3$

Calculating:

$V=523.6\ cm^3$

The mass is:

$m=8.09 gr/cm^3 \cdot 523.6\ cm^3$

m=4,235.9 gr

The mass of the steel ball is 4,235.9 gr

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3 years ago

Katie is in charge of bying juice for the teachers breakfast party. If one teacher will drink 18 and 22 ounces of juice, and the

Lerok [7]

300m2+120m+180 dollars

6 0

3 years ago

A jacket that cost a store $120 was marked up to $168. What percent was the mark up?

german

Answer:

48%

Step-by-step explanation:

you have to subtract 168 and 120

8 0

3 years ago

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