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bekas [8.4K]
3 years ago
9

Dr. Cyril conducts a simple random sample of 500 men who became fathers for the first time in the past year. He finds that 23% o

f them report being unsure of their ability to be good fathers, plus or minus 4%. What is another term for the 4% value?
Mathematics
1 answer:
svlad2 [7]3 years ago
7 0

Answer:

The another term for the 4% value is : Margin of error

Step-by-step explanation:

Dr. Cyril conducts a simple random sample of 500 men.

He finds that 23% of them report being unsure of their ability to be good fathers, plus or minus 4%.

Now, the another term for the 4% value is : Margin of error

Means the estimate of father being unsure about his ability would be between 19% and 27%.

When sample size is increased, the margin of error becomes smaller.

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¿Cuántas libras de café “La Finca” que se vende a $5 la libra debe mezclarse con 80 libras decafé común que se vende a $2 la lib
Romashka-Z-Leto [24]

Answer:

Necesitamos agregar 40 libras del café La Finca

Step-by-step explanation:

Sea x el número de libras de café de La Finca a mezclar.

Entonces, la cantidad total de libras que obtendremos en la mezcla será (x + 80) libras.

Ahora trabajemos con los precios; Tenemos x libras de La Finca a $ 5 por libra, con 80 libras de café a $ 2 por libra para dar una mezcla de (x + 80) a $ 3 Así, sumaremos el precio de La Finca más la otra variante para llegar al costo de la nueva mezcla.

Matemáticamente;

5 (x) + 2 (80) = 3 (x + 80)

5x + 160 = 3x + 240

5x -3x = 240-160

2x = 80

x = 80/2 x = 40

4 0
3 years ago
PLS HELP QUICK I WILL GIVE BRAINLIEST
Volgvan

Answer:

B

Step-by-step explanation:

The equation for B equals a negative answer

7 0
2 years ago
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When graphing inequalities why do you use closed or open dot?
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Answer:

0.19706

Step-by-step explanation:

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QUICK QUESTION! PLEASE ANSWER FAST!
mr_godi [17]
A^2 + B^2 = C^2
7^2 + B^2 = 25^2
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4 years ago
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