3 years ago

Mr. Evans displays the test scores of his first period class in the box plot below.

Mathematics

2 answers:

aleksandr82 [10.1K]3 years ago

8 0

Answer:

Step-by-step explanation:

Median is the middle entry when arranged in ascending or descending order.Q1 can be mentioned as the median of first entry to median, when arranged inascending order. Similarly Q3 is the median of the entries from median to end

Q1=78

IQR=Q3-Q1=5

Q3=78+5=83

Hence answer is 83

Illusion [34]3 years ago

7 0

The IQR of the first period is 15. The IQR of the third period is 1/3 that, 5*(1/3) is equal to 5.

For the third period, Q1 is 78. The expression for Q3 is Q1+IQR

Therefore, 78+5 = 83

Q3 of the third period is 83

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Nezavi [6.7K]

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3 years ago

The point(3,7) is reflected in the y axis what are the coordinates now

lapo4ka [179]

When a point P(a, b) is reflected about the y-axis, the coordinates of the reflected point are P'(-a, b).

Thus, the reflection of point (3, 7) is (-3, 7), as shown in the picture.

Answer: (-3, 7)