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mario62 [17]
2 years ago
7

Sally took her stats test last week and scored a 45%. The class average was 55%with a standard deviation of 4.5. How many standa

rd deviations below the mean did Sally score? (Hint: z-score
)A) 3.33 SD above the mean
B) 2.22 SD below the mean
C) 2.22 SD above the mean
D) 3.33 SD below the mean
Mathematics
1 answer:
sesenic [268]2 years ago
5 0

Answer: A

Step-by-step explanation:

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y-3x=-5
Times 2 from both side
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3 years ago
Identify the first 4 terms in the geometric sequence given by the explicit formula ƒ(n) = 4 × 2(n – 1).
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2 years ago
BRAINIEST TO WHOEVER RIGHT
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Answer:

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