Answer:
80%
explanation:
just looked up "what percentage is 12 out of 15 and it gave me an answer"
just do this for all ur other questions like this
Answer:
(-7, 1)
Step-by-step explanation:
Add the x and y values separately which is across from your screen to get the function which is (-7, 1).
Answer: b = 2a
Step-by-step explanation:
<u>Original equation</u>
a = (1/2) b
<u>Multiply 2 on both sides</u>
a * 2 = (1/2) b * 2

Hope this helps!! :)
Please let me know if you have any quesitons
0.985 is the median.
I hope this helped
Answer:
0.2805
Step-by-step explanation:
Given that p = 20% = 0.2, n = 300.
The mean (μ) = np = 0.2 * 300 = 60
The standard deviation (σ) = 
The z score is used to determine by how many standard deviations the raw score is above or below the mean. The z score is given by:

For x = 57:

For x = 62:

From the normal distribution table, P(57 < x < 62) = P(-0.43 < z < 0.29) = P(z < 0.29) - P(z < -0.43) = 0.6141 - 0.3336 = 0.2805