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Blababa [14]
3 years ago
6

Please help with number one into

Mathematics
1 answer:
Darya [45]3 years ago
5 0
It grows i hope i helped a lot
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which of the following are valid probability distributions for a discrete random variable? check all that apply
djverab [1.8K]
A. <span>0.16 + 0.193 + 0.222 + 0.233 + 0.067 + 0.125 = 84
</span>probabilities are all between 0 and 1 but does not add to 1.
<span>B. 0.35+0.18+ 0.21+ 0.06+ 0.17+ 0.03 = 1
</span>probabilities are all between 0 and 1 and also <span>add to 1.
</span><span>C. (0.01) 11+ (0.01) 12+ (0.01) 13 = 0.11+0.12+0.13 =0.36
</span>probabilities are all between 0 and 1 but does not add to 1.
D. 0.16+0.12+ 0.02+ 0.08+ 0.22+ 0.05+ 0.15+ 0.02+ 0.18 = 1
probabilities are all between 0 and 1 and also add to 1.
E. 0.12-0.02+0.18+0.08+0.15+0.05+0.16+0.27+0.02+ 0.36 -0.15 -0.22 =1
probabilities are all between 0 and 1 and also <span>add to 1.</span>
3 0
4 years ago
Read 2 more answers
Mr. Johnson's lunch bill is $29.90, which includes a 15% tip. What is the price before the tip?
mr_godi [17]

Answer: it’s 26

Step-by-step explanation:

29.90 divided by 1.15= 26

8 0
3 years ago
Suzy regularly cuts across her neighbor's yard to get to school in the morning. How much distance does she save by cutting acros
podryga [215]
She would have to walk 12+24 which is 36 but she only has to walk:
√12²+24² = 26.8

36-26.8=9.2

She saves 9.2 ft

Hope this helps :)
7 0
3 years ago
Work out the length of x<br><br>show working out​
Elena L [17]

Answer:

12.12

Step-by-step explanation:

the formula to find x in this case would be:

      ______

x=√14^2-7^2

x=√c^2﹣a^2=√14^2﹣7^2≈12.12436

3 0
3 years ago
14. Simplify the expression. 3(15-3)^2- 4 108 18 36 9<br>​
nirvana33 [79]

Answer: 84 Answer

Step-by-step explanation:

3[12.2+4]

3[24+4]

3.28

6 0
3 years ago
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