On a coordinate plane, a parallelogram has points A (negative 3, 4), B (3, 4), C (1, negative 2), and D (negative 5, negative 2)
2 answers:
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Answer:
95% of the text messages have length between 23 units and 47 units.
Step-by-step explanation:
We are given the following in the question:
The lengths of text messages are normally distributed.
95% confidence interval:
(23,47)
Thus, we could interpret the confidence interval as:
About 95% of the text messages have length between 23 units and 47 units.
By Empirical rule for a normally distributed data, about 95% of data lies within 2 standard deviations of mean , thus we can write:
Thus, the mean length of text messages is 23 units and standard deviation is 6 units.
The statements and their individual answers are not provided in the question. However, please check the explanation given below for the equation.
Step-by-step explanation:
- The equation given is
- Divide the leading term of the dividend by the leading term of the divisor:
- Multiply it by the divisor:
-
Subtract the dividend from the obtained result:
- Divide the leading term of the obtained remainder by the leading term of the divisor:
- Multiply it by the divisor:
- Subtract the remainder from the obtained result:
- Divide the leading term of the obtained remainder by the leading term of the divisor:
- Multiply it by the divisor:
- Subtract the remainder from the obtained result:
- Since the degree of the remainder is less than the degree of the divisor, then we are done.
- Therefore,