Answer:
96 marks
Step-by-step explanation:
We know that the mean of a given amount of values is the sum of the values divided by the number of values
Let the marks in the fourth test = x marks
Mean of the values = 90
(85 + 90 + 89 + x) / 4 = 90
264 + x = 360
x = 96
Therefore, Jamie needs 96 marks in her 4th test to get a mean score of 90
25X100= 2,500 at the door
2,500-20,500 = 18,000 lift
18,000/15 =1,200 people on line
Answer:
a diagram consisting of rectangles whose area is proportional to the frequency of a variable and whose width is equal to the class interval.
explanation: A histogram is a chart that shows frequencies for. intervals of values of a metric variable. Such intervals as known as “bins” and they all have the same widths. The example above uses $25 as its bin width. So it shows how many people make between $800 and $825, $825 and $850 and so on.
Answer:
4
Step-by-step explanation:
there is no quantity for g and 4 is all that is left
Answer: 22
Step-by-step explanation:
