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Nadusha1986 [10]
3 years ago
8

A coin is tossed then a number 1-10 is chosen at random what is the probability of getting heads then a number less than 4

Mathematics
1 answer:
Darya [45]3 years ago
3 0
The probability of getting heads on a coin toss is 0.5
The probability of choosing a number <u>less</u> than four is 3/10 (1,2,3)

Therefore, the probability of getting heads <u>and</u> choosing a number less than four is:
=  \frac{1}{2} (\frac{3}{10}) = \frac{3}{20} = 0.15

Hope this helps!
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Answer:

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Step-by-step explanation:

We are given the function:

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2 years ago
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Answer:

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Step-by-step explanation:

Assuming the following question: "One sample has a mean of M=8 and a second sample has a mean of M=16 . The two samples are combined into a single set of scores.

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And if we replace the values given we have:

M = \frac{8*4 + 16*4}{4+4}= 12

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M = \frac{8*3 + 16*5}{3+5}= 13

c) what is the mean for the combined set if the first sample has n=5 and the second sample has n=3

Using the definition we have:

M = \frac{8*5 + 16*3}{5+3}= 11

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