Christopher looked at his quiz scores shown below for the first andsecond semester of his Algebra class.
Semester 1: 78, 91, 88, 83, 94
Semester 2: 91, 96, 80, 77, 88, 85, 92
Which statement about Christopher’s performance is correct?
(1) The interquartile range for semester 1 is greater than the
interquartile range for semester 2.
(2) The median score for semester 1 is greater than the median
score for semester 2.
(3) The mean score for semester 2 is greater than the mean score
for semester 1.
(4) The third quartile for semester 2 is greater than the third
quartile for semester 1.

Answers

Answer 1
Answer:
The answer is (2) because median means the number halfway into the set and the median for semester1 is 88 and the median for semester 2 is 77
Answer 2
Answer: What you can do is find out everything mentioned until you find one that matches.
(1) Semester 1's IQR is 8, and semester 2's IQR is 12, so that statement is incorrect
(2) Semester 1's median is 88, and semester 2's median is 88, so that statement is incorrect
(3) Semester 1's mean is 86.8, and semester 2's mean is 87, so that statement is correct.
Since that is correct, the answer is (3).

Related Questions

Help ASAP i will give brainliest
The ratio of Monarch butterflies to Queen butterflies at a butterfly farm was 9:7. If there are no additional butterflies at the farm, what is the ratio of Queen butterflies to the total number of butterflies at the farm?
If csc theta =sqrt5/15 find sin theta
I need help with this question please help!! will give you brainliest and points
billy and Ryan had a competition at the batting cage. billy hit 7 balls for every 4 balls Ryan hit. billy and Ryan hit a total of 99 balls. how many balls did each boy hit?

Brainliest if correct hurryyy!!

Answers

Answer:

8.14

Step-by-step explanation:

Ok.So to do this, you have to know the Pytharomean Theroem.If you do not know how,then that is totally ok.I will tell.So the theroem has a formula.

Down below is a image showing the variables.

Now the hypotenuse is c.And b and a are the legs.

So we can put evaluses in the formula(formula:a^2 + b^2 = c):

(6.0)^2 + (5.5)^2 = c^2

36 + 30.25=c^2

66.25=c^2

8.14 = c

So 8.14 is the anwser!

Hoped it helped!

GEOMETRY. PLEASE, I NEED HELP NOW!The lateral area of a cone is 736 pi cm^2 . The radius is 46 cm. Find the slant height to the nearest tenth.
A. 16 cm
B. 21.1 cm
C. 13.4 cm
D. 21.6 cm

Answers

(1/2)pidh=lateral area
h=slant height
so
736pi=1/2pidh
divid eobth sides by pi
736=1/2dh
multiply both sides by 2
1472=dh

2r=d
2(46)=d=92

1472=92h
divide both sides by 92
16 exatly

slant height=16cm

answer is A



0.04, 0.4, 0.044, 0.404, 4.404 in ascending order

Answers

.04, .044, .4, .404, 4.404

In HIJ∆ determine the measure of H∠ to the nearest degree.

Answers

Use the law of sines. The sine of the given angle divided by its opposite side is equal to the sine of that unknown angle at the top left divided by the other given side (it's too small for me to read the diagram you provided). And remember, once you have two of the angles, start with 180, subtract the two angles that you do have and you will get the third angle.

How many seconds are in one day?

Answers

Answer:

86,400

Step-by-step explanation:

thereare60secondsinaminute,thereare1440minutesinaday.1440×60=86,400

// have a great day //

Answer: 86,400 seconds

Evaluate if x=13.2 and y=4.3 -x-2y

Answers

Lets substitute for each variable, then solve:-

x = 13.2
y = 4.3

x = 13.2
-13.2 - 2y

y = 4.3
-x - 2 · 4.3

Lets solve:-

-13.2 - 2 × 4.3 
-13.2 - (2 × 4.3)
-13.2 - 8.6
-21.8

So, when x = 13.2 and y = 4.3, -x - 2y = -21.8

Hope I helped ya!! xD