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Svetach [21]
3 years ago
5

Tom predicted that the Giants what score three point field goal scored two 6 points touchdowns in for one extra points if Tom we

re correct what would the Giants score be at the end of the game
Mathematics
1 answer:
frozen [14]3 years ago
4 0
If they only scored one field goal they would start with 3, and if they scored one extra point on each touchdown that would be 7+7+3 that would equal 17. If they only scored one extra point between two touchdowns than it would be 3+7+6=16
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What is the slope of the line that represents this relationship?
galben [10]

Answer:

undefine

Step-by-step explanation:

the slope does not show rise over run it just sgow one of them therefore it is undefine

7 0
3 years ago
In a survey, 99 out of 100 people are not left-handed. what proportion of people are left-handed according to this survey?​
Mnenie [13.5K]

Answer:

1 out of 100

Step-by-step explanation:

99 out of 100 people are NOT left-handed, that means they are right handed. 100-99=1

6 0
3 years ago
The quality control manager of a chemical company randomly sampled twenty 100-pound bags of fertilizer to estimate the variance
lisabon 2012 [21]

Answer:

The 95% confidence interval for the variance in the pounds of impurities would be 3.829 \leq \sigma^2 \leq 14.121.

Step-by-step explanation:

1) Data given and notation

s^2 =6.62 represent the sample variance

s=2.573 represent the sample standard deviation

\bar x represent the sample mean

n=20 the sample size

Confidence=95% or 0.95

A confidence interval is "a range of values that’s likely to include a population value with a certain degree of confidence. It is often expressed a % whereby a population mean or variance lies between an upper and lower interval".  

The margin of error is the range of values below and above the sample statistic in a confidence interval.

The Chi square distribution is the distribution of the sum of squared standard normal deviates .

2) Calculating the confidence interval

The confidence interval for the population variance is given by the following formula:

\frac{(n-1)s^2}{\chi^2_{\alpha/2}} \leq \sigma^2 \frac{(n-1)s^2}{\chi^2_{1-\alpha/2}}

On this case the sample variance is given and for the sample deviation is just the square root of the sample variance.

The next step would be calculate the critical values. First we need to calculate the degrees of freedom given by:

df=n-1=20-1=19

Since the Confidence is 0.95 or 95%, the value of \alpha=0.05 and \alpha/2 =0.025, and we can use excel, a calculator or a table to find the critical values.  

The excel commands would be: "=CHISQ.INV(0.025,19)" "=CHISQ.INV(0.975,19)". so for this case the critical values are:

\chi^2_{\alpha/2}=32.852

\chi^2_{1- \alpha/2}=8.907

And replacing into the formula for the interval we got:

\frac{(19)(6.62)}{32.852} \leq \sigma^2 \frac{(19)(6.62)}{8.907}

3.829 \leq \sigma^2 \leq 14.121

So the 95% confidence interval for the variance in the pounds of impurities would be 3.829 \leq \sigma^2 \leq 14.121.

4 0
3 years ago
If s= the number of stamps that sara has, which mathematical sentence expresses the information?
Monica [59]
S*x!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
7 0
3 years ago
\250 doctors from three countries in Europe meeting in a conference to decide whether to approve a new vaccine for the flu. Amon
Bezzdna [24]

Answer:

0.683 = 68.3% probability that a randomly chosen doctor is in favor of the vaccine

Step-by-step explanation:

(a) What is the probability that a randomly chosen doctor is in favor of the vaccine

75% of 115/250 = 0.46(German).

60% of 65/250 = 0.26(French).

65% of 70/250 = 0.28(Englishmen). So

p = 0.75*0.46 + 0.6*0.26 + 0.65*0.28 = 0.683

0.683 = 68.3% probability that a randomly chosen doctor is in favor of the vaccine

8 0
3 years ago
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