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statuscvo [17]
3 years ago
14

Connie and two of her friends completed a 10-mile bike relay. each friend road an equal part of the race. what distance did each

friend ride?
Mathematics
2 answers:
IrinaVladis [17]3 years ago
8 0
Connie + 1 friend +2 friend = 10
3 people = 10 miles
3 people/3= 10 miles / 3
Each friend rode 3 1/3 miles
ella [17]3 years ago
5 0

Answer: 3 1/3

Step-by-step explanation:

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A researcher compares the effectiveness of two different instructional methods for teaching electronics. A sample of 138 student
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The 98% confidence interval for the true difference between testing averages for students using Method 1 and students using Method 2 is (-8.04, 0.84).

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The (1 - <em>α</em>)% confidence interval for the difference between population means is:

CI=(\bar x_{1}-\bar x_{2})\pm z_{\alpha/2}\times \sqrt{\frac{\sigma^{2}_{1}}{n_{1}}+\frac{\sigma^{2}_{2}}{n_{2}}}

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Compute the 98% confidence interval for the true difference between testing averages for students using Method 1 and students using Method 2 as follows:

CI=(\bar x_{1}-\bar x_{2})\pm z_{\alpha/2}\times \sqrt{\frac{\sigma^{2}_{1}}{n_{1}}+\frac{\sigma^{2}_{2}}{n_{2}}}

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