The mean June midday temperature in Desertville is 36°C and the standard deviation is 3°C. Assuming this data is normally distributed, how many days in June would you expect the midday temperature to be between 39°C and 42°C?

The value is  

Step-by-step explanation:

From the question we are told that

   The mean is  

    The standard deviation

Generally the probability that in June , the midday  temperature is between  

39°C and 42°C is mathematically represented as

=>  

From the z table  the area under the normal curve to the left corresponding to  1 and  2  is

     P(Z   < 2)  = 0.97725

and

    P(Z   < 1)  = 0.84134

=>  

Generally number of days in June would you expect the midday temperature to be between 39°C and 42°C

Here n is the number of days in June which is  n = 30

=>    

the infinity sign

step-by-step explanation: