Answer:
year 7 mean: ≈7.714
year 8 mean: 14
Step-by-step explanation:
mean = sum / number of observations
number of observations = 5, as there are 5 bars for each year
year 7 is the bar on the left for each day
observations for year 7:
5, 8, 9, 13, 19 (left to right)
sum = 5 + 8 + 9 + 13 + 19 = 54 for year 7
mean for year 7 = 54 / 7 ≈ 7.714
observations for year 8 (left to right):
10, 11, 18, 12, 19
sum = 10 + 11 + 18 + 12 + 19 = 70
mean = 70 / 5 = 14
Answer:
24cm
Step-by-step explanation:
pi(4^2) = 50.26548246
This is the area of the circle
384pi / area of circle = 24cm
Answer:
She would pay $36.36 to cover the whole box.
Step-by-step explanation:
You need to find the area of all sides of the box and add them together first.
So, 8x6 = 48
48x2 = 96 (Two of the same sides)
6x11 = 66
66x2 = 132 (Two of the same sides)
8x11 = 88
88x2 = 176 (Two of the same sides)
Add all of those together to get 404 sq inches.
Multiply 404 x 0.09 (the 9 cents) to get your answer of $36.36! Hope this helped!
Answer:
B. The histogram appears to roughly approximate a normal distribution. The frequencies generally increase to a maximum and then decrease, and the histogram is symmetric.
Step-by-step explanation:
The Graph of Normal Distribution is like a bell-shaped. Here the value of y is less for the lower value of x and then the value of y is increased for a larger value of x, but after some time value of y is again getting decrease as the value of x increases. For the Histogram to appear to a normal distribution, the graph of histogram must have the same nature. Thus option B is only the correct option.
The histogram is made up of columns bar with no gaps between bars with different labels of numeric data of different heights shows the size of the group of different labels.
