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3 years ago

The probability distribution for a random variable x is given in the table Find the probability that X<=20

Mathematics

2 answers:

Eddi Din [679]3 years ago

5 0

Answer:

Step-by-step explanation:

It's right for accelus

ikadub [295]3 years ago

4 0

Answer:

Step-by-step explanation:

I guessed on the problem and it was right

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Who started the problem correctly? The problem form is (-5) - (-1 3/4).

Veronika [31]

Answer:

Shane started the problem correctly

Step-by-step explanation:

We are given problem (-5) - (-1 3/4).

Mariah started the problem as (-5) + 1 - 3/4

Shane started the problem as (-5) + 1 + 3/4

We need to find who started the problem correctly.

The problem should be started by converting the mixed fraction into improper fraction i,e

$-5-(-1\frac{3}{4})\\=-5-(-1-\frac{3}{4} )\\=-5-(-\frac{7}{4})$

Now we will solve bracket by multiplying -1 with term inside the bracket i.e

$=-5+\frac{7}{4}$

$= \frac{-13}{4}$

Let's compare both the procedures now:

Mariah:

$(-5) + 1 - \frac{3}{4}$

$=(-5) - \frac{1}{4}$

$=\frac{-21}{4}$

Therefore, Mariah did not start the problem correctly.

Shane:

$(-5) + 1 + \frac{3}{4}$

$= -5 + \frac{7}{4}$

$= \frac{-13}{4}$

Therefore, Shane started the problem correctly.

6 0

3 years ago

2+2 my question must be 20 characters long

geniusboy [140]

It is four. So two and two you add them together to be four. Good job. Your learning :)

4 0

3 years ago

Gabriella has 4 times as many erasers as Leona.Leona has 8 erasers. How many erasers does Gabriella have

Juli2301 [7.4K]

Answer:32

Step-by-step explanation8 x 4 = 32:

6 0

3 years ago

Read 2 more answers

A diamond ring was reduced from $999.99 to $699.99. Find the percent decrease in the price. Round the answer to the nearest tent

poizon [28]

Answer:

30.0% decrease.

Step-by-step explanation:

A diamond ring was reduced from $999.99 to $699.99

The decrease is; $999.99 - $699.99 = $300.00

Percentage decrease = $\frac{decrease}{original price}$ × 100

i.e percentage decrease = $\frac{300}{999.99}$ × 100 = 30.0003%

And it equals to 30.0% (rounded off to the nearest tenth of a percent)

5 0

3 years ago

A menu in a restaurant allows you to pick some items from Column A and some from Column B. Column A has 24 items. Column B has 1

Darya [45]

You can each order from: Column A- 6 times, Column B- 4 times

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3 years ago