PLS HELP I'LL GIVE BRAINLIEST
2 answers:
You have to form a proportion:
Meals are only 11% for the vacation budget. This means that meals would go over 100% like this:
You also know that you have $550 for meal (your part) but you want to know what your total vacation budget is(your whole) (x), so you would set it up like this
Now you sent them equal to solve for x:
cross multiply:
11x = 55,000
x = 5,000
This means that your total vacation budget is $5,000
Hope this helped!
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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 amount of cofee shops 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: