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zysi [14]
3 years ago
13

I need help on this 3 - 2 3/5

Mathematics
2 answers:
Tamiku [17]3 years ago
7 0
The answer to your question is 9/5
ziro4ka [17]3 years ago
5 0
3 - 2 3/5 = 2/5

I hope this helped!!!:)
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If a coin has been altered so that the probability of heads coming up is 3/10, then the probability of tails coming up is also 3
soldier1979 [14.2K]
False. In a coin, there are 2 possible out comes i.e. a head and a tail. if p is the probability of one side coming up, then the probability of the other side comin up will be q = 1 - p.

Therefore, if the probability of head coming up is 3/10, the probability of tail coming up will be 1 - 3/10 = 7/10.
8 0
3 years ago
According to an​ almanac, 60​% of adult smokers started smoking before turning 18 years old. ​(a) compute the mean and standard
larisa [96]
The given problem describes a binomial distribution with p = 60% = 0.6. Given that there are 400 trials, i.e. n = 400.

a.) The mean is given by:

\mu=np=400\times0.6=240

The standard deviation is given by:

\sigma=\sqrt{npq} \\  \\ =\sqrt{np(1-p)} \\  \\ =\sqrt{400(0.6)(0.4)} \\  \\ =\sqrt{96}=9.80


b.)  The mean means that in an experiment of 400 adult smokers, we expect on the average to get about 240 smokers who started smoking before turning 18 years.


c.) It would be unusual to observe <span>340 smokers who started smoking before turning 18 years old in a random sample of 400 adult​ smokers because 340 is far greater than the mean of the distribution.
340 is greater than 3 standard deviations from the mean of the distribution.</span>
5 0
3 years ago
1. Write the equation of the line best fit
Pavel [41]

Answer:

y=3/4x+2

Step-by-step explanation:

I found this by using desmos graphing calculator

8 0
3 years ago
I want help with this equation -1 + x = 8x - 8
Ilya [14]

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x=1

Step-by-step explanation:

To solve for x, we need to get x alone on one side of the equation.

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-1+x=8x-8\\x=8x-7\\-7x=-7\\x=1

7 0
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Solve the Inequality<br> 9w-4w+6≥1+5w
vivado [14]

Answer: All real numbers :)

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