Answer:
A. 2:17 p.m.
Step-by-step explanation:
7 minuets more than 10 minuets is 17.
The measure of dispersion that measures how much the data differ from the mean is called the standard deviation.
<h3>What is standard deviation?</h3>
Standard deviation is a statistical measure of dispersion as opposed to the measure of central tendency like mean, median and mode.
The standard deviation is a measure of how spread out data values are around the mean.
It is defined as the square root of the variance and represented with the Greek letter σ.
Learn more about standard deviation at: brainly.com/question/16555520
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Answer:
81.85%
Step-by-step explanation:
Given :
The average summer temperature in Anchorage is 69°F.
The daily temperature is normally distributed with a standard deviation of 7°F .
To Find:What percentage of the time would the temperature be between 55°F and 76°F?
Solution:
Mean = 
Standard deviation = 
Formula : 
Now At x = 55


At x = 76


Now to find P(55<z<76)
P(2<z<-1)=P(z<2)-P(z>-1)
Using z table :
P(2<z<-1)=P(z<2)-P(z>-1)=0.9772-0.1587=0.8185
Now percentage of the time would the temperature be between 55°F and 76°F = 
Hence If the daily temperature is normally distributed with a standard deviation of 7°F, 81.85% of the time would the temperature be between 55°F and 76°F.
Answer:-2
Step-by-step explanation:
Answer:
Step-by-step explanation:
In ΔJOY and ΔLAF,
If ∠O ≅ ∠J
And 
Then ΔJOY ~ ΔLAF
By SAS property of similarity of two triangles.
(If two corresponding sides of the triangles are proportional and angles between these sides are equal)