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Sergeu [11.5K]
3 years ago
12

Experience shows that few students hand in their statistics exams early; most prefer to hand them in near the end of the test pe

riod. This means the time taken by students to write exams is positively skewed.
a. True
b. False
Mathematics
1 answer:
konstantin123 [22]3 years ago
4 0

Answer:

False

Step-by-step explanation:   6 28 13  50

skewing to the right of a sysmetrical distribution is a negative skew

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You have a summer job that pays time and a half for overtime. that is if you work more than 40 hours per week,your hourly wage f
Georgia [21]
There are a number of ways you can write the piecewise function. Here is one of them:

p(t)=\left\{\begin{array}{rcl}7t&\mbox{for}&t\leq40\\10.5t-140&\mbox{for}&t>40\end{array}\right.

It could also be something like
p(t) = 7t + 3.50×max(0, t-40)
where the max(x,y) function returns the larger of x or y.
5 0
3 years ago
Congruent triangles have the same perimeter and area.<br><br> False<br><br> True
Nady [450]

Answer:

true

Step-by-step explanation:

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3 0
3 years ago
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The sum of 6 times a number and 8 times another number is 12. The difference of those numbers is 9. What are the two numbers
Inga [223]

Answer:

(x,y): (6 , -3) or (-30/7 , 33/7)

Step-by-step explanation:

6x + 8y = 12

x = y + 9 or   y = x+ 9

if x = y+9

6*(y+9) + 8y = 12

14y = -42

y = -3 and x = 6

if y = x+9

6x + 8*(x+9) = 12

14x = -60

x = -30/7   and y = 33/7

6 0
3 years ago
Plzzz help me I’m bad with box and whisker plots
Komok [63]
Hello!

Do you see the line right in the middle of the box? That is the median. It points down to about 15.5

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5 0
3 years ago
What is the measure of bc if b is a midpoint? 4x-5 &amp; 11 + 2x please help asap!
Bad White [126]

Answer:

<em>BC =  27</em>

Step-by-step explanation:

The point B is the midpoint of AC

=> AB = BC

=> 4x - 5 = 11 + 2x

Let's calculate x to work out BC

Transferring the components containing x to the left side, and other components to the right side:

=> 4x - 2x = 11 + 5

Simplifying both sides:

=> 2x = 16

=> x = 8

Working out BC:

=> BC = 11 + 2x = 11 + 2(8) = 11 + 16 = 27

Hope this helps!

7 0
3 years ago
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