(Please help!!!)
1 answer:
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Answer:
x = 5 is the solution
Step-by-step explanation:
See the attachment for table values.
f(x) = g(x) for x = 5
The solution to the equation ...
2.5x -10.5 = 64(0.5^x)
is x = 5.
Answer:
1/8
Step-by-step explanation:
A dentist has 400 male and female patients that range in age is from 10 years old to 50 years old and up. What is the experimental probability that the next patient will be female and in the age range of 22 through 39?
10-21 22-39 40-50 50+
Male 44 66 32 53
Female 36 50 45 74
There are 400 male and female patient in total
there 400 possible outcome
Total number of possible outcome = 400
There are 50 females in 22-39 range and thus there are 50 favourable outcome
The probability is the number of favourable outcome divided by the number of possible outcome
= 0.125
=12.5%
Answer:
And we can find this probability with this difference:
Step-by-step explanation:
Previous concepts
Normal distribution, is a "probability distribution that is symmetric about the mean, showing that data near the mean are more frequent in occurrence than data far from the mean".
The Z-score is "a numerical measurement used in statistics of a value's relationship to the mean (average) of a group of values, measured in terms of standard deviations from the mean".
Solution to the problem
Let X the random variable that represent the temperatures of a population, and for this case we know the distribution for X is given by:
Where and
We are interested on this probability
And the best way to solve this problem is using the normal standard distribution and the z score given by:
If we apply this formula to our probability we got this:
And we can find this probability with this difference: