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3 years ago

(WILL GIVE BRAINLIEST) Find the mean for the data shown below.

Mathematics

2 answers:

Jlenok [28]3 years ago

8 0

Answer:

The mean is 2.0909090909091

Step-by-step explanation:

Mean: The average of all numbers.

First I added all of the numbers, and then divided by the amount of numbers there were.

1 + 1 + 1 + 1 + 1 + 2 + 2 + 3 + 3 + 3 + 5 = 23

23 ÷ 9 = 2.0909090909091

Rounded it's 2, or 2.09

gizmo_the_mogwai [7]3 years ago

3 0

Answer:

Step-by-step explanation:

17+3=20/2

mean=10

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In a certain residential suburb, 60% of all households get Internet service from the local cable company, 80% get television ser

Serggg [28]

Answer:

a) 0.900

b) 0.400

Step-by-step explanation:

Let I = households getting internet

T = households getting television

Then I = 60%

and T = 80%

$I\cap T = 50\%$ (Households that get both services)

a) Households getting at least one service, $I\cup T = I + T - I\cap T= 60+80-50 =90\%=0.900$

b) Those getting internet only = $I - I\cap T = 60 - 50 = 10\% = 0.1$

Those getting television only = $T - I\cap T = 80- 50=30\%=0.3$

Probability of getting exactly one service = 0.1 + 0.3 = 0.400

6 0

3 years ago

Flying against the wind, a jet travels 4400mi in 8 hours. Flying with the wind, the same jet travels 5820mi in 6 hours. What is

Viefleur [7K]

Let J = rate of jet in still airLet W = rate of wind Distance formula: d = rt / r = d/t Flying against the wind the jet flies at a rate of J - W = 1860 miles/3 hours = 620 miles per hourFlying with the wind the jet flies at a rate of J+W = 9180 miles/9 hours = 1020 miles per hour The average of these 2 rate is the speed of the jet in still air J = (620+1020)/2 = 820 miles per hour J - W = 620

820 - W = 620
W = 820 - 620 = 200 miles per hour The jet in still air flies at a rate of 820 mph(miles per hour)The wind speed is 200 mph(miles per hour)

3 0

4 years ago

What is the answer to (6x10x^{-5})x(8x10x^{7} ) written in standard form?

klasskru [66]

Answer:

standard form is 48x^23

5 0

3 years ago

Find the sum of -6 1/8+1 1/4

Vlad [161]

Answer:

$\large\boxed{-4\dfrac{7}{8}=-4.875}$

Step-by-step explanation:

To add two fractions, they must have the same denominator.

LCD = 8

$1\dfrac{1}{4}=1\dfrac{1\cdot2}{4\cdot2}=1\dfrac{2}{8}$

$-6\dfrac{1}{8}+1\dfrac{1}{4}=-6\dfrac{1}{8}+1\dfrac{2}{8}=-\left(6\dfrac{1}{8}-1\dfrac{2}{8}\right)=(*)\\\\\text{We know}\ 1=\dfrac{8}{8},\ 6=5+1=5+\dfrac{8}{8}=5\dfrac{8}{8}.\\\\\text{Therefore}\ 6\dfrac{1}{8}=5\dfrac{8+1}{8}=5\dfrac{9}{8}\\\\(*)=-\left(5\dfrac{9}{8}-1\dfrac{2}{8}\right)=-\bigg((5-1)+\dfrac{9-2}{8}\bigg)=-\bigg(4+\dfrac{7}{8}\bigg)=-4\dfrac{7}{8}$

You can convert the fractions to the decimals.

$6\dfrac{1}{8}=8.125\\\\1\dfrac{1}{4}=1.25\\\\-6\dfrac{1}{8}+1\dfrac{1}{4}=-6.125+1.25=1.25-6.125=-4.875$

5 0

4 years ago

Ktkrk rj. Rj4k4k4k krk4ke3k rk3k Ijjkhtjrkrkrnemek3

larisa86 [58]

what's the question though

3 0

3 years ago