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3 years ago

Does anyone know this?

Mathematics

1 answer:

konstantin123 [22]3 years ago

7 0

Answer:

Step-by-step explanation:

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For which sample size (n) and sample proportion (p) can a normal curve be

Nonamiya [84]

Answer:

Option c.

Step-by-step explanation:

Using the normal curve to approximate a sampling distribution:

For a sample size n and a proportion n, the normal curve can be used if:

$np \geq 10$ and $n(1-p) \geq 10$

Option a:

$np = 35*0.8 = 28 > 10$

$n(1-p) = 35*0.2 = 7 < 10$

So option a cannot be used.

Option b:

$np = 65*0.9 = 58.5 > 10$

$n(1-p) = 65*0.1 = 6.5 < 10$

So option b cannot be used.

Option c:

$np = 65*0.8 = 52 > 10$

$n(1-p) = 65*0.2 = 13 > 10$

So option c can be used, and is the answer

Option d:

$np = 35*0.9 = 31.5 > 10$

$n(1-p) = 35*0.1 = 3.5 < 10$

So option d cannot be used.

The answer is given by option c.

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3 years ago

Can you please help me solve this answer plz

Scilla [17]

Do the 15 new people fill the gondola?

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4 years ago

80% of what number is 64

Thepotemich [5.8K]

Make an equation.

80% = 0.8

'of' is multiplication

'what number' is 'x'

'is' is an equal sign

0.8 * x = 64

0.8x = 64

Divide 0.8 to both sides:

x = 80

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3 years ago

The Experssion for 629

Diano4ka-milaya [45]

iedikdtep-by-step explanation:

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3 years ago

The problem is Question<br> Divide.52÷(−45)

Artemon [7]

Answer:

-1.555

Step-by-step explanation:

52/(-45)= -1.555555

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2 years ago

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