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Daniel [21]
2 years ago
7

Students in 7th grade took a standardized math test that they also had taken in 5th grade. The collected data showed that in two

years the median increased by three points, and the mean increased by around two and a half points. In terms of the context, what can you infer?
Mathematics
2 answers:
Arada [10]2 years ago
6 0
<span>In general, the students increased their standardized math scores from 5th grade to 7th grade. The students might be more familiar with the exam and they have learned more in their math classes.</span>
Svetllana [295]2 years ago
5 0

Answer:

Step-by-step explanation:

Given that

Students in 7th grade took a standardized math test that they also had taken in 5th grade. The collected data showed that in two years the median increased by three points, and the mean increased by around two and a half points. In terms of the context,

This proves that there is overall improvement in the grades of students.

But there is a small difference between mean increase and median increase.

While median increased 3 points, mean increased only by 2.5 points.  This implies there exists unusually low level iq students who had unusually low score thus affecting mean to be low.

Special training should be given to those students.

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A parcel delivery company delivered 103,000 packages last year, when its average employment was 84 drivers. This year the firm h
Aleksandr [31]

Answer: 4.85%

Step-by-step explanation: productivity = parcel delivered / number of drivers.

At when parcel delivered was 103, 000 the average number of drivers was 84 thus making the productivity to be

103,000/ 84 = 1226.19

At when the parcel delivered was 112, 800 the average number of drivers was 96 thus making the productivity to be

112, 000/ 96 = 1166.67

Thus the change in productivity = 1226.19 - 1166.67 = 59.52.

Initial productivity = 1226.19

final productivity = 1166.67

% change in productivity = change in productivity / initial productivity * 100

% change in productivity = 59.52 /1226 * 100

% change in productivity = 4.85%

8 0
2 years ago
?Order: Add 125 mg of morphine sulfate to DW 250 mL stat. and infuse at 0.005? mg/kg/min.
Elis [28]

Answer:

A. 57 mL/hr

Step-by-step explanation:

Mass of morphine sulfate = 125 mg

DW = 250 mL

Rate of infusion = 0.005 mg/kg/min

Converting to mg/kg/hour

0.005 mg/kg/min×60 = 0.3 mg/kg/hour

For the patient who weighs 95 kilograms

0.3 mg/kg/hour×95 = 28.5 mg/hour

For the mass of 125 mg of morphine sulfate

1 mg

250/150 = 2 ml/mg

Rate of infusion

28.5×2 = 57 mL/hr

∴ Rate of infusion is 57 mL/hr

5 0
2 years ago
The soccer team collected $800 at a car wash fundraiser. They charged $5.00 for small vehicles and $10.00 for larger vehicles. T
Katyanochek1 [597]

5x + 10y = 800

y = 50

10y = 10*50 = 500

800 - 500 = 300

300/5 = 60

x = 60

5(60) + 10(50) = 800

60 small vehicles were washed in total

8 0
2 years ago
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There are five sales agents in a certain real estate office. One month Andy sold twice as many properties as Ellen, Bob sold 3 m
Novosadov [1.4K]

Answer:

Carry

Step-by-step explanation:

Here let’s take any arbitrary value for the number of properties sold by Ellen.

Let the number of properties sold by Ellen he 10. We were told Andy sold twice of this, this means he sold 20 properties

Bob sold 3 more than Ellen, meaning he sold 13.

Carry sold twice of Bob meaning he sold 26

Dora sold the addition of Bob and Ellen = 13 + 10 = 23

Carry sold 26 and this makes him the highest seller.

7 0
2 years ago
A community center charges x dollars for a summer activity if individuals are signed up before the day of the activity. Individu
Art [367]

Answer:

The answer should be A, let me know if that's wrong.

Step-by-step explanation:

5 0
1 year ago
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