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tigry1 [53]
2 years ago
8

In a class of 30 students, 7 play an instrument and 19 play a sport. There are 4 students who play an instrument and also play a

sport. What is the probability that a student chosen randomly from the class plays an instrument?
Mathematics
2 answers:
Law Incorporation [45]2 years ago
5 0

Answer:

1/20

Step-by-step explanation:

Doss [256]2 years ago
3 0

Answer:

7/30

Step-by-step explanation:

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3 years ago
Find the mean, median, and mode of the data set. Round to the nearest tenth.
statuscvo [17]
The mean is the average of the data set. Median is the value that separates the higher half and the lower half of the set of values. Mode is the value that occurs often in the data set. Therefore, the correct answer is option A, <span>mean = 9.7, median = 10, mode = 15</span>
6 0
3 years ago
Read 2 more answers
1. What would be the best graph or display to represent your Home Library Statistics data? Why?
algol13

Answer:

A bar graph

Step-by-step explanation:

A bar chart will give you the visual understanding of your data.It will clearly show the book with most number of pages and compare the books according to the number of pages.You can formart using different colors for each bar.

4 0
2 years ago
Error Analysis Your friend says that the volume of this sphere is 44.58
Maurinko [17]

Answer:

  • the given dimension was used as the radius
  • 5.57 m³

Step-by-step explanation:

The volume of a sphere can be found using the formula ...

  V = 4/3πr³ . . . . . where r is the radius

__

The figure points to a diameter line and indicates 2.2 m. The arrowhead is in the middle of a radius line, making it easy to interpret the dimension as the radius of the sphere.

If 2.2 m is used as the radius, the volume is computed to be ...

  V = 4/3π(2.2 m)³ ≈ 44.58 m³

This agrees with your friend's volume, suggesting the diameter was used in place of the radius in the computation.

__

The correct volume, using 2.2 m as the diameter, is ...

  V = 4/3π(1.1 m)³ ≈ 5.57 m³

6 0
2 years ago
evaluate the expression 9(a 2b) c for a = –3, b = –2, and c = 1. i kept getting the answer of 10 but it's not one of my choices
den301095 [7]
What grade are u? I'm just asking cause the formulas are going with grade I could help if u want me too
7 0
3 years ago
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