Question

An astronomer as
the mount palomar
Observatory notes that during the Geminid
meteor shower, an average of 50 meters
appears each hour, with a variance of
9 meteors squared.
The Geminid meteor shower will occur next week.

@) If the astronomet waches the shower
for 4 hour, what is the pobability that
atleast 48 meteor per hour will appear?
(b) If the astronomer watches for
additional hour, will this probability rise or
fall? why?​

Answer 1

sissibdkdsd 7ssidgxisvge used your refhdw6u and thus truths 6yeuda tetus .........

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Answer 2

Answer:

Step-by-step explanation:

first step:

variance=9

standard deviation=$standard deviation = \sqrt{9\\\\=3\\mean=50\\\\x=48\\\\\\48-50=-2z=\frac{-2}{3} \\\\z=-0.66\\now look in the z table for area of 0.66\\\\p(48\leq x)=0.5+0.2454 = 0.7454$