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Ivenika [448]
4 years ago
9

The first six plays in the Santa Fe Memorial high school football game had the following yardage results: -3, -5, 19, -7, -24, -

4. Find the mean of the first six plays of the football game. (Remember: To find the mean, add the numbers and divide by the total number of plays.)
Mathematics
1 answer:
lys-0071 [83]4 years ago
5 0
All the numbers added together are -2 and then -24 divided by the number of players which is 6
therefore the answer is -4
You might be interested in
Calculate the area of the triangle.
vovikov84 [41]

Answer:

21 cm squared

Step-by-step explanation:

The area of a triangle is base times height divided by 2, or

a = base time height/2

The base here is 7cm and the height is 6cm.

7 times 6 is 42.

42 divided by 2 is 21

4 0
3 years ago
Para hacer 600 m de una obra, 30 obreros han trabajado 12 dias a razon de 10 horas diarias. ¿Cuantos dias necesitaran 36 obreros
Gwar [14]

Respuesta:

25 días

Explicación paso a paso:

Dado :

escenario 1

Área = 600 m

Número de días = 12

Número de trabajadores = 30

Tasa = 6

Escenario 2:

Área = 900 m

Número de días = n

Número de trabajadores = 36

Tasa = 6

Igualar los parámetros en cada escenario:

12 / n = 36/30 * 6/10 * 600/900

12 / n = 6/5 * 3/5 * 2/3

12 / n = 6/5 * 1/5 * 2/1

12 / n = 12/25

12 * 25 = 12n

300 = 12n

n = 300/12

n = 25 días

7 0
3 years ago
A professor would like to test the hypothesis that the average number of minutes that a student needs to complete a statistics e
professor190 [17]

Answer:

\chi^2 =\frac{15-1}{25} 16 =8.96

The degrees of freedom are given by:

df = n-1 = 15-1=14

The p value for this case would be given by:

p_v =P(\chi^2

Since the p value is higher than the significance level we have enough evidence to FAIL to reject the null hypothesis and we can conclude that the true deviation is not ignificantly lower than 5 minutes

Step-by-step explanation:

Information given

n=15 represent the sample size

\alpha=0.05 represent the confidence level  

s^2 =16 represent the sample variance

\sigma^2_0 =25 represent the value that we want to  verify

System of hypothesis

We want to test if the true deviation for this case is lesss than 5minutes, so the system of hypothesis would be:

Null Hypothesis: \sigma^2 \geq 25

Alternative hypothesis: \sigma^2

The statistic is given by:

\chi^2 =\frac{n-1}{\sigma^2_0} s^2

And replacing we got:

\chi^2 =\frac{15-1}{25} 16 =8.96

The degrees of freedom are given by:

df = n-1 = 15-1=14

The p value for this case would be given by:

p_v =P(\chi^2

Since the p value is higher than the significance level we have enough evidence to FAIL to reject the null hypothesis and we can conclude that the true deviation is not ignificantly lower than 5 minutes

6 0
3 years ago
What is Pablo's ratio of free to paid minutes
8_murik_8 [283]
The answers is 2:10 or 2/10
4 0
4 years ago
Whats the answer giving brainliest :)
8090 [49]
The answer to this is 10 markers

80% = .8

8/.8 = 10

8/10 = .8
4 0
3 years ago
Read 2 more answers
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