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wolverine [178]
3 years ago
15

Diego took a survey to find out how many students plan to go to a school band concert. There are more than 1,000 students in his

school. He selected a sample by asking the first 50 students he met at band practice.
Mathematics
2 answers:
puteri [66]3 years ago
6 0

Answer:

The one above is wrong

The actual answers are A and D

Gennadij [26K]3 years ago
4 0

Answer: N/A

Step-by-step explanation: We need more info to solve this problem

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How do I solve system of equations substitution method??!!?!???
adelina 88 [10]
For example:

x+2y=7
6x+7y=2
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x=7-2y *
6*(7-2y)+7y=2 **

__________

x=7-2y
42-12y+7y=2
__________

x=7-2y
-5y=-40
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x=7-2y
y=8

x=-9
8 0
3 years ago
What’s the answer???
Over [174]

Answer:

Question 7 = $2

Question 8 = $16

8 0
3 years ago
Read 2 more answers
Determine if the following triangle is a right triangle or not using the Pythagorean Theorem Converse. Triangle with side length
Nadusha1986 [10]

Answer:

It is a right triangle

Step-by-step explanation:

Information needed:

Formula: a^2+b^2= c^2

a: leg

b: leg

c: hypotenuse

the longest side is always the hypotenuse, so 17 in

the order of legs don't matter so 8 in and 15 in

Solve:

a^2+b^2= c^2

8^2+15^2= 17^2

64+225= 289

289= 289

Final answer:

It is a right triangle

8 0
3 years ago
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It is estimated % of all adults in United States invest in stocks and that % of U.S. adults have investments in fixed income ins
katovenus [111]

Complete question :

It is estimated 28% of all adults in United States invest in stocks and that 85% of U.S. adults have investments in fixed income instruments (savings accounts, bonds, etc.). It is also estimated that 26% of U.S. adults have investments in both stocks and fixed income instruments. (a) What is the probability that a randomly chosen stock investor also invests in fixed income instruments? Round your answer to decimal places. (b) What is the probability that a randomly chosen U.S. adult invests in stocks, given that s/he invests in fixed income instruments?

Answer:

0.929 ; 0.306

Step-by-step explanation:

Using the information:

P(stock) = P(s) = 28% = 0.28

P(fixed income) = P(f) = 0.85

P(stock and fixed income) = p(SnF) = 26%

a) What is the probability that a randomly chosen stock investor also invests in fixed income instruments? Round your answer to decimal places.

P(F|S) = p(FnS) / p(s)

= 0.26 / 0.28

= 0.9285

= 0.929

(b) What is the probability that a randomly chosen U.S. adult invests in stocks, given that s/he invests in fixed income instruments?

P(s|f) = p(SnF) / p(f)

P(S|F) = 0.26 / 0.85 = 0.3058823

P(S¦F) = 0.306 (to 3 decimal places)

3 0
3 years ago
Can some one PLEASE give me brainliest
KIM [24]

Answer:

You gotta deserve it

Step-by-step explanation:

8 0
3 years ago
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