To answer this you do the vertical line test.
6 & 7 are functions
It's A and C, I've taken a test that has this question and it was correct when I answered this, so A and C is your answer.
Mean: 2.238
median: 3
sample standard deviation: 2.531
first quartile: 1
third quartile: 5
what % of respondents have at least 4 siblings?
29.79%
94% of all respondents have fewer than how many siblings?
5
Answer:
Gregory gets 4 coffee for free and the total number of coffee he gets is 16.
Step-by-step explanation:
Given that when customers pay for 3 coffees, they get another coffee free.
So, for the cost of 3 coffee, 1 coffee is free.
Therefore, for the cost of 3n coffee, n coffee is free.
As Gregory pays for 12=3x4 coffees, the number of free coffee, n=4.
So, the total number of coffee Gregory = 12+4=16.
Hence, Gregory gets 4 coffee for free and the total number of coffee he gets is 16.