Divide 74 into 4 and 6
74/4 = 18,5
74/6=12,33
so if you buy in bags of 4 you need 19 bags, which costs 5 x 19 = $95
if you buy in bags of 6 you need 13 bags, which costs 7 x 13 = $91
Buying in bags of 6 costs less.
Answer:
68 sandwiches
Step-by-step explanation:
Given that,
A shop sells 15 sandwiches in 10 minutes.
10 minutes = (10/60) hour = (1/6) hour
In (1/6) hour shop sells 15 sandwiches
In 1 hour = 90 sandwiches
To find, no of sandwiches in 3/4 hours, multiply 3/4 by 90. So,
In 3/4 hour =
sandwiches
or
≅ 68 sandwiches
So, 68 sandwiches can be made in 3/4 hour.
Answer: B) type II error
Step-by-step explanation: whenever hypothesis test is performed it is not possible to be 100% certain about the conclusion or decision made, hence their must be a level of confidence for the conclusion made.
The level of significance (α) usually takes the lower percentage of the area of distribution.
When you reject the null hypothesis instead of accepting it, you commit a type I error, the probability of committing this error is the level of significance (α).
When you accept the null hypothesis when you are suppose to reject it, you commit a type II error and the probability of committing this error is confidence level (β) which is (1- α)
A) The median is 22 because it is in the middle
B) The range is 44 because it is the lowest (10) plus the highest (34)
C) The interquartile range is 36 because its the highest of the box (20) plus the lowest of the bow (16)