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frutty [35]
3 years ago
14

the scores on a psychology exam were normally distributed with a mean of 56 and a standard deviation of 9. A failing grade on th

e exam was anything 2 or more standard deviations below the mean. What was the cutoff for a failing​ score?
Mathematics
1 answer:
bija089 [108]3 years ago
3 0

hey! i got a failing grade! this world is so small.

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THIS TABLE LINEAR OR NON-LINEAR?
defon

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yes

Step-by-step explanation:

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Please help me! Whoever gets the correct answer and explains it will get marked Brainliest!!
Helen [10]

1. The answer is 0.425

2. the answer is 0.425

3. the answer is 0.2125

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3 years ago
Allen's hummingbird (Selasphorus sasin) has been studied by zoologist Bill Alther.† Suppose a small group of 10 Allen's hummingb
ruslelena [56]

Answer: provided in the explanation segment

Step-by-step explanation:

(a). from the question, we can see that since that б is known, we can use standard normal, z.

we are asked to find an 80% confidence interval for the average weights of Allen's hummingbirds in the study region. What is the margin of error?

⇒ 80% confidence interval for the average weight of Allen's hummingbirds is given thus;

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3.15 ± 1.28 * 0.32/√10

= 3.15 ± 0.1295 = 3.0205 or 3.2795

(b). normal distribution of weight (c) б is known

(c). option (a) and (e) are correct

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6 0
3 years ago
What is 4/9 closest to 0,1/2 or 1
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Answer:

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4 0
2 years ago
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A 1L IV contains 60meq of kcal. The IV was discontinued after 400ml has infused. How much lvl did the patient receive
Leya [2.2K]

If a 1L IV contains 60meq of kcal and the IV was discontinued after 400ml has infused, then the amount of IV received by the patient is 24meq of kcal.

Calculation for the Amount of IV

It is given that,

1L IV contains 60meq of kcal

⇒ 1000 mL of IV contains 60meq of kcal

⇒ 1 mL of IV will contain 60 / 1000 meq of kcal

As per the question,

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= 4 × 6

= 24 meq of kcal

Hence, the patient receives 24meq of kcal amount of IV.

Learn more about amount here:

brainly.com/question/4567186

#SPJ1

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2 years ago
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