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leonid [27]
3 years ago
6

For a large data set of a average student grades, the third quartile Q3 is found 78.5 . What does the mean when we say that 78.5

is the third quartile?
Mathematics
1 answer:
xz_007 [3.2K]3 years ago
3 0

Step-by-step explanation:              

We are told that for a large data set of a average student grades, the third quartile Q3 is found 78.5.

Since we know that third quartile represents the number such that 75% of the data is less than this number. Third quartile is the middle value between median and the highest value of a data set. Third quartile is also known as upper quartile. Third quartile splits lower 75% data from highest 25% of data.

Therefore, third quartile represents that 75% of student grades are less than 78.5 and 25% of students grades are greater than 78.5.


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Plz help me with this
Nana76 [90]
This question is not even trying to test your arithmetic.  It's just testing
to see whether you know how to read numbers in words properly.

When you read numbers in words, the only time you ever say "and"
is for a decimal point.  There are no decimals in this question, so the
"and" is not a part of any numbers.

The question gives you two numbers. The word "and" is the marker
that's BETWEEN them.  The two numbers are 1,300 and 950 .

The first thing the question wants you to do is write the numerical
expression for all the words.  That's    (1300 - 950) / 4 .

The next thing you're supposed to do is"evaluate the expression" ...
find out what number it all boils down to.  I don't think you'll have
any trouble with that now.
3 0
3 years ago
A "B" grade on a test is 85%. How many questions can you miss on a 35-question exam and get a<br> B.
vekshin1

Answer:

5

Step-by-step explanation:

If all question are worth same same amount of points, you can miss 5 questions out of 35 and get an 86. If you miss 6 questions you would get an 83.

hope this helped!

4 0
2 years ago
Read 2 more answers
187 is 55% how do you find the answer step by step that way I know how to solve problems like these.
IceJOKER [234]

Answer:

271.5

Step-by-step explanation:

100-55=45

45% of 187

187*45=8415

8415/100=84.15

84.15 is 45% of 187

271.15

5 0
2 years ago
Read 2 more answers
It took the carriage 2.5 hours to travel 20 miles. H ow long will it take for the carriage to travel in 12 miles
Tomtit [17]
\bf \begin{array}{ccll}&#10;hours&miles\\&#10;\text{\textemdash\textemdash\textemdash}&\text{\textemdash\textemdash\textemdash}\\&#10;2.5&20\\&#10;h&12&#10;\end{array}\implies \cfrac{2.5}{h}=\cfrac{20}{12}\implies \cfrac{2.5\cdot 12}{20}=h
6 0
3 years ago
A local animal shelter has 27 dogs and 23 cats. What percent of the<br> animals are dogs?
SVEN [57.7K]

Answer:

54%

Step-by-step explanation:

total  animals=27+23=50

dogs=\frac{27}{50} \times100=54

6 0
3 years ago
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