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2 years ago

Desperately need help and an explanation so I can do it on my own later.

Mathematics

1 answer:

Mashutka [201]2 years ago

4 0

Step-by-step explanation:

since the sumation of f(x) of a probability is 1

thw probability to win is o.5 and to lose is o.5 so expected value is xf(x

your expected value will b 0.5 multiply by 5 thats is 2.5 thats your expected gain

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Artyom0805 [142]

Answer:

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3 years ago

HELP PLZ

ollegr [7]

Answer:

a. ∠D'A'B'

Step-by-step explanation:

From the graph it is clear that the transformation doesn't affect the size and shape of the figure ABCD.

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Hence the corresponding angle values will also remain unaltered.

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3 years ago

The ratio of boys to girls is 7:12 if there are 76 children how many are girls?

Vikentia [17]

12 girls out of 19, how many out of 76

12 - x
19 - 76

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3 0

3 years ago

Read 2 more answers

What is the minimum number of clients the travel agent should survey? Note that z=1.96 for a 95% confidence interval.

slega [8]

Answer:

121

Step-by-step explanation:

Given data as per the question

Standard deviation = $\sigma$ = 840

Margin of error = E = 150

Confidence level = c = 95%

For 95% confidence, z = 1.96

based on the above information, the minimum number of clients surveyed by the travel agent is

$n = (\frac{z\times \sigma}{E})^2$

$= (\frac{1.96\times 840}{150})^2$

= 120.47

= 121

hence, the 121 number of clients to be surveyed

Therefore we applied the above formula to determine the minimum number of clients

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3 years ago

What is 5

Sonja [21]

Answer:

Step-by-step explanation:

hope this helps:))

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3 years ago