Answer:
0.6826
Step-by-step explanation:
The high temperatures for days in January are Normally distributed with a mean of 38 degrees Fahrenheit and a standard deviation of 5 degrees . How many days in January will have temperatures between 33 degrees Fahrenheit and 43 degrees Fahrenheit ? Round your answer to two decimal places.
Solution:
The z score is a score used in statistics to determine by how many standard deviations the raw score is above or below the mean. The z score is given by the formula:
From the normal distribution table, P(33 < x < 43) = P(-1 < z < 1) = P(z < 1) - P(z < -1) = 0.8413 - 0.1587 = 0.6826
Amount in sales / ticket price = tickets sold
2212 / 14
= 158
hope this helps , give brainliest
Well first you have to solve for one of the variables in terms of x or y, and then substitute it into the other problem.
Answer:
Step-by-step explanation:
y^2-22y+c
complete the square ax^2+bx+c is our old formula quadratic equation
we know that to find c we will divide b/2 and square it
22/2=11
c^2=121
we have y^2-22y+121
-3 would be the correct answer