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4vir4ik [10]
3 years ago
10

In a class of 28 students, 12 earned an A on the final exam, 6 earned a B, 4 earned a C, and the remaining students failed. Base

d on these results, what is the experimental probability that a student will not earn an A or a B?
Mathematics
1 answer:
Sedaia [141]3 years ago
6 0

Answer:

  5/14 ≈ 35.7%

Step-by-step explanation:

(12 +6) = 18 of the 28 students earned an A or a B. So, the experimental probability that a student did not earn that grade is ...

  p(<B) = (28 -18)/28 = 10/28

  p(<B) = 5/14 ≈ 35.7%

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1- Leave the 1st case empty

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----------- ║-----------------------------------------------------
y             ║        y³                   -3y²                9y
----------- ║---------------------------------------------------
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6 0
3 years ago
3. What is the slope of a line that passes<br> through (0,-5) and (8,27)?
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Step-by-step explanation:

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6 0
2 years ago
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Which table can be created using the equation below? –2 + 4x = y A 2-column table with 3 rows. Column 1 is labeled x with entrie
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The correct answer is C. A 2-column table with 3 rows. Column 1 is labeled x with entries negative 5, 0, 3. Column 2 is labeled y with entries negative 18, negative 2, 10.

Explanation:

The purpose of an equation is to show the equivalence between two mathematical expressions. This implies in the equation "–2 + 4x = y" the value of y should always be the same that -2 + 4x. Additionally, if a table is created with different values of x and y the equivalence should always be true. This occurs only in the third option.

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   0                -2

   3                 10

First row:

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Second row:

-2 + 4 (0) y

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Step-by-step explanation:

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