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Mkey [24]
3 years ago
7

Which measure describes how much a sample mean varies when different samples are chosen?

Mathematics
2 answers:
Nataliya [291]3 years ago
6 0

Step-by-step explanation:

the most common measure of how much sample mean differ from each other is the standard deviation of the sampling distribution of the mean. this standard deviation is called the standard error of the mean

vladimir2022 [97]3 years ago
3 0

Answer:

confidence interval

Step-by-step explanation:

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Savannah recorded the average rainfall amount, in inches, for two cities over the course of 6 months.
klasskru [66]
The median for city A is 4 and the median for city B is 5.25.
4 0
4 years ago
The data in the table are linear. Use the table to find the slope.
Gemiola [76]

Answer:

m = -\frac{3}{2}

Step-by-step explanation:

Given

x 2 4 6 8

y 1 -2 -5 -8

Required

Determine the slope

First, pick any two corresponding x and y values.

(x_1,y_1) =(2,1)

(x_2,y_2) =(8,-8)\\

The slope (m) is then calculated using:

m = \frac{y_1 - y_2}{x_1 - x_2}

Substitute in, the x and y values

m = \frac{1 - (-8)}{2- 8}

m = \frac{1 +8}{-6}

m = \frac{9}{-6}

m = -\frac{9}{6}

Divide numerator and denominator by 3

m = -\frac{9/3}{6/3}

m = -\frac{3}{2}

<em>Hence, the slope is -3/2</em>

8 0
3 years ago
F(2)=3 divide by 2x-5
Margaret [11]

Answer:

f(2) =  \frac{3}{2x - 5}

8 0
3 years ago
What decimal is smaller .52 or .25
Liono4ka [1.6K]

Answer:

0.25

Step-by-step explanation:

0.52 is like 2 quarters

0.25 is 1 quarter

So, 1 < 2

Have a nice day! :)

3 0
3 years ago
PLEASE PLEASE HELP ME!! NEEDING HELP BADLY!
Allisa [31]

Each paper cup is a cone.
The volume if a cone is      (1/3) (pi) (radius)² (height)

Notice, in the picture they labeled the <em>diameter</em> of the cup = 8 cm.
But we need the<em> radius</em>. that's 1/2 of the diameter = 4 cm.

So, the volume of these paper cups is 

                                           (1/3) (pi) (4cm)² (11 cm) = about <em><u>184 cm³</u></em>
=====================

It says that tons of lemons have been sacrificed, and you have
about  37,850  cm³ of lemonade.

How many cups will that fill ?

       37,850 cm³ / 184 cm³ = about <em>205 cups</em>.
========================

How many packs of cups do you need to buy ?
Unfortunately, they only come in packs of 50.

1 pack = 50 cups . . . . . not enough
2 packs = 100 cups . . . not enough
3 packs = 150 cups . . . not enough
4 packs = 200 cups . . . oh so close but still not enough

You need to buy <em>5 packs = <u>250 cups</u></em>.
=================================

It started raining, so you only sold 80% of the lemonade that you had.

80% means 0.80
"of" means "times"

You started out with 37,850 cm³ .

You sold  (0.8) x (37,850 cm³) = about  <u>30,280 cm³</u> of it.

How many cups did you fill with that much lemonade ?
(Remember, each cup holds about <u>184 cm³</u>.)

         30,280 cm³ / 184 cm³ = about <u>164 cups sold</u>.

You bought 250 cups to start out.
You sold 164 cups of lemonade.

You had  (250 bought - 164 used) =

               <em>86 clean, unused paper cups, still in the wrappers, left over</em>.


8 0
3 years ago
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