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3 years ago

A town's yearly snowfall in inches over a 10-year period is recorded in this table.

Mathematics

1 answer:

irinina [24]3 years ago

5 0

Answer:

18.8

14+12+21+26+19+15+22+17+24+18 = 188 188/10

I don't remember how to do stem and leaf plots.

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How do you do this??

astra-53 [7]

welll...you have there written just one relationship...it is berween 280 and 4 hours...you have to figure out speed:

$280 \div 4 = 70$

it is speed per hour

then you just connect time and speed:

140 - 2
280 - 4
350 - 5
420 - 6
560 - 8
700 - 10

6 0

3 years ago

Help me pls.

salantis [7]

Answer:

1. 424

2.471

3.512

Step-by-step explanation:

1. 10×12+8×10+8×13+8×15

=120+80+104+120

=424

2. 5×24+9×24+9×15+9×15

=120+216+135

=471

3. 24×16+2×24+2×20+2×20

=384+48+40+40

=512

3 0

3 years ago

I need to know the answer

nydimaria [60]

2x - 48 >= 4
2x >= 52
x >= 26

answer is D. x >= 26

4 0

3 years ago

HELP LAST ATTEMPT ( get marked brainliest show work

Sergio039 [100]

Answer:

Step-by-step explanation:

the side length is equal to sqrt(33)

sqrt(33) = 5.74, closest to 5 3/4

4 0

3 years ago

The highway fuel economy of a 2016 Lexus RX 350 FWD 6-cylinder 3.5-L automatic 5-speed using premium fuel is a normally distribu

Elodia [21]

Answer:

a) Standard error = 0.5

b) 99% Confidence interval: (19.2125,21.7875)

Step-by-step explanation:

We are given the following in the question:

Population mean = 20.50 mpg

Sample standard deviation = 3.00 mpg

Sample size , n = 36

Standard Error =

$=\displaystyle\frac{\sigma}{\sqrt{n}} = \frac{3}{\sqrt{36}} = 0.5$

99% Confidence interval:

$\mu \pm z_{critical}\frac{\sigma}{\sqrt{n}}$

Putting the values, we get,

$z_{critical}\text{ at}~\alpha_{0.01} = \pm 2.575$

$20.50 \pm 2.575(\displaystyle\frac{3}{\sqrt{36}})= 20.50 \pm 1.2875 = (19.2125,21.7875)$

4 0

3 years ago