Answer:
50% of all students scored more than 48 marks.
Step-by-step explanation:
1) The baseline of the box, in a box plot is the first quartile, the line in the middle is the median or Q2 and the last line (or top line) is the third quartile. Namely,
2) The Question says "nobody took 30, 48 or 70 as their grades. But 120 students gained less than 70", i.e. 120 are within the 75% of the sample.
3) If then 50% of the students scored more than 48. And 50% of the students scored less than 48. That is also known as the Median.
So 50%, the half of all students scored more than 48 marks.
Answer:
3
Step-by-step explanation:
I think the answer would be 3 because 12 times 3 equals 36 but i could be wrong
The line of best fit is a line that follows the direction of the dots. It doesn't have to be perfect, it's just a general line to represent the data. Sometimes there isn't a line of best fit (if there is no correlation). It normally touches most of the dots.
The slope is about 1/2 and the point where the line touches the y axis is at 40 so that means an equation could be y = 1/2x + 40
When the advertising expenditure (x value) is 18,000, substitute it into the equation above. y = 1/2(18,000) + 40 which equals y = 9,040 . This is the expected revenue.
Hope this helps!
______________________________
<h3>= $445.5 ÷ 27Hrs</h3><h3>= 16.5</h3><h3>= <u>$16.50</u></h3><h3>Ruth's Hourly Pay Rate Is $16.50</h3>
______________________________
Answer:
(8 + 6i)(7 – 9i) = (7 – 9i)(8 + 6i)
Step-by-step explanation:
commutative property of multiplication
abc = acb
We can change the order in which the multiplication is done
(8 + 6i)(7 – 9i) = (7 – 9i)(8 + 6i)