Answer: cumulative frequency
Step-by-step explanation:
- A frequency is the number of times a data value occurs.
- A relative frequency is the fraction or proportion of times an answer occurs.
- The cumulative frequency analysis is the analysis of the frequency of occurrence of values of a phenomenon less than a reference value.
In a data set, the cumulative frequency for a value x is the total number of scores that are less than or equal to x.
Hence, cumulative frequency represents the number of times all outcomes less than a given outcome occur.
Answer:
Any number of hours greater than 16
Step-by-step explanation:
First thing we have to do is write each equation for each cafe's internet access. For Cyber Station, the rate is $1.50 per hour which is the slope of the line (slope is, after all, the rate of change of y to x...or here, cost to hours). The flat fee is what you are charged even if you use 0 hours. The linear equation for Cyber Station is y = 1.5x + 12
The linear equation for Web World, which only has a rate but no flat fee, is
y = 2.25x
We are asked for how many hours of access, x, is the cost, y, at Cyber Station LESS THAN the cost at Web World. That tells me that you are working with linear inequalities in class! We want the cost at CS to be less than that at WW so our inequality looks like this:
1.5x + 12 < 2.25x
Solving for x:
16 < x. That means, in words, that any number of hours over 16 will make Cyber Station cheaper to use than Web World.
Answer:
636.17251
Step-by-step explanation:
V = πr^2h = π·4.5^2·10 ≈ 636.17251
If you find a first you will be able to find b a little faster then it is super easy after that you got this!