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omeli [17]
3 years ago
6

In the accompanying​ table, the random variable x represents the number of televisions in a household in a certain country. Dete

rmine whether or not the table is a probability distribution. If it is a probability​ distribution, find its mean and standard deviation.
x
​P(x)
0 0.03
1 0.12
2 0.24
3 0.32
4 0.15
5 0.14
Mathematics
2 answers:
Luba_88 [7]3 years ago
6 0

Answer:

ghndcnfuyufbty

Step-by-step explanation:

dtybdrtdbtdtvtv6

sleet_krkn [62]3 years ago
4 0
0.03 just trust me it’s is 0.03
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--- Find each missing length to the nearest tenth. ----
Dafna1 [17]

Answer:

the answer missing length is 7.6 and yes i rounded it to the nearest tenth.

Step-by-step explanation:

4 0
3 years ago
A parking lot has 27 spaces total. if 9 of the spaces have cars in them, what is the ratio empty spaces to filled spaces?​
bonufazy [111]

Answer:

2 : 1

Step-by-step explanation:

27 total

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8 0
3 years ago
Find the solution to the system. Write your solution as an ordered pair (x,y) with no spaces, no solution, or infinitely many. X
chubhunter [2.5K]

Answer:

(15, 11).

Step-by-step explanation:

Given the system of equation;

X=2y-7 ..... 1

4x+y=71 ....2

Substitute 1 into2;

4(2y-7) + y = 71

8y - 28 + y = 71

9y - 28 = 71

9y = 71 + 28

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y = 11

Substitute y = 11 into 1;

x = 2y - 7

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x = 15

hence the solution to the equation is (15, 11).

4 0
3 years ago
$10,000 is invested at two different rates. $2,500 is invested at 4%, and the rest is invested at 5%. How much interest is earne
viva [34]
So, what we have to do is split 10000
0.04(2500) + 0.05(7500)
Multiply:
100 + 375 = 475
$475 is made in one year
6 0
4 years ago
A cheese pizza costs $5. Additional toppings cost $1.50 each. Write and graph an equation that represents the total cost $c$ (in
Triss [41]

Answer:

5 + 1.5x = total cost

Step-by-step explanation:

5 is for one pizza and x is for toppings. For every topping it is multiplied by 1.5. for example, if you have 2 toppings for one cheese pizza it would be 5 dollars + 1.5x2 which is 3 so 3+5=8$ in total.

7 0
3 years ago
Read 2 more answers
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