Question
The mean temperature for july in H-town 73 degrees fahrenheit. Assuming that the distribution of temperature is normal what would the standart deviation have to be if 5% of the days in july have a temperature of at least 87 degrees?
55
likes276 views
Answer to a math question The mean temperature for july in H-town 73 degrees fahrenheit. Assuming that the distribution of temperature is normal what would the standart deviation have to be if 5% of the days in july have a temperature of at least 87 degrees?
Timmothy
4.897 Answers
given
P(Z>z)=0.05
1-P(Z \sigma=\frac{\left(\overline{x}-\mu\right)}{z}
\sigma=\frac{\left(87-73\right)}{1.6449}=8.51
hence required standard deviation=8.51
Frequently asked questions (FAQs)
What is the common characteristic of the exponential functions f(x) = 10^x and f(x) = e^x in terms of their growth rates and the values of x that result in a constant value for f(x)?
+
What is the number of ways to arrange 5 different books on a shelf given that only 3 books can fit in one row?
+
What is the value of (7 + 12) - (4 x 3) divided by 2?
+
New questions in Mathematics