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ivolga24 [154]
3 years ago
9

A farm covers an area of 13square mile. The farm is divided into 4 equal sections, as shown in this diagram.

Mathematics
2 answers:
Juli2301 [7.4K]3 years ago
5 0
Hm let me think about it
Whitepunk [10]3 years ago
4 0

Answer:

3.25 heres your answer

Step-by-step explanation:

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Una muestra aleatoria si 136 personas de 400 a quien se le aplica un nuevo medicamento experimentaron mejoría Desarrolla un inte
Rudiy27

Answer:

Intervalo de confianza

= (0.294, 0.386)

Step-by-step explanation:

La fórmula para el intervalo de confianza para la proporción se da como

p ± z × √p (1 - p) / n

Donde p = x / n

De donde de la pregunta anterior

x = 136 personas

n = 400 personas

p = 136/400

p = 0.34

z = puntuación z del intervalo de confianza del 95% = 1.96

Por lo tanto,

Intervalo de confianza =

0.34 ± 1.96 × √0.34 (1 - 0.34) / 400

= 0.34 ± 1.96 × √0.34 × 0.66/400

= 0.34 ± 1.96 × √0.000561

= 0.34 ± 1.96 × 0.0236854386

= 0.34 ± 0.0464234596

Intervalo de confianza

= 0.34 - 0.0464234596

= 0.2935765404

= 0.34 + 0.0464234596

= 0.3864234596

Hence:Intervalo de confianza

= (0.294, 0.386)

3 0
3 years ago
Which line segment could be mid segment of abc? 21 points!!!!
Pavel [41]

Answer:

DF

Step-by-step explanation:

the mid segment is a line that connects the midpoints.

4 0
3 years ago
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You own a car wash with three of your friend the total profit in this first month was 438. In two months each of you had made a
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$736 because $184 x 4 would give you your amount.
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3 years ago
Which value of x makes this equation true?<br> -4.9 = -5.6 + x
stiks02 [169]
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3 0
3 years ago
When plotting sample statistics on a control chart, 99.7% of the sample statistic values are expected to fall within plus/minus
Blababa [14]

Answer:

By the Empirical Rule, \pm 3\sigma

Step-by-step explanation:

The Empirical Rule states that, for a normally distributed random variable:

68% of the measures are within 1 standard deviation of the mean.

95% of the measures are within 2 standard deviation of the mean.

99.7% of the measures are within 3 standard deviations of the mean.

The symbol of a standard deviation is \sigma. So

When plotting sample statistics on a control chart, 99.7% of the sample statistic values are expected to fall within plus/minus how many sigma?

By the Empirical Rule, \pm 3\sigma

5 0
3 years ago
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