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Brilliant_brown [7]
3 years ago
11

Ella’s test grades in her history class are 89, 94, 82, 84, and 98. What score must Ella make on her next test to have a mean te

st score of 90?
Mathematics
2 answers:
const2013 [10]3 years ago
8 0
Ella must make a 93 to create a classroom mean test score of 90


lions [1.4K]3 years ago
8 0

Answer:

93

Step-by-step explanation:

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A survey revealed that 56% of the students at North Valley high school are involved with in a sports team. The survey also showe
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Answer:

The probability that a student who is involved in a sports team also participated in the prom dance = 0.1344

Step-by-step explanation:

56% of the students are involved in a sport team

56% = 0.56

According to the question, it is stated that 24% of the students at the school that are involved in a sports team also participated in the prom dance.

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This means that we are going to find 24% of the original 56%, since 24% of them also participated in the prom dance.

The probability that a student who is involved in a sports team also participated in the prom dance = 0.24 * 0.56

The probability that a student who is involved in a sports team also participated in the prom dance = 0.1344

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