Normal distribution

Watch
#1
Sunflower height is normally distributed mean 185 and standard deviation 10

Determine the probability that the mean height of a random sample of 4 sunflowers is more than 190cm.
0
#2
i dont even know where to start
0
1 week ago
#3
(Original post by Imperial Majesty)
Sunflower height is normally distributed mean 185 and standard deviation 10

Determine the probability that the mean height of a random sample of 4 sunflowers is more than 190cm.
Do you understand that the mean of a random sample is itself a random variable?

So, let be the mean of the sample. How is it distributed?

Then you will proceed to find
0
X

new posts
Back
to top
Latest
My Feed

Oops, nobody has postedin the last few hours.

Why not re-start the conversation?

see more

See more of what you like onThe Student Room

You can personalise what you see on TSR. Tell us a little about yourself to get started.

Poll

Join the discussion

With no certainty that exams next year will take place, how does this make you feel?

More motivated (65)
27.78%
Less motivated (169)
72.22%

View All
Latest
My Feed

Oops, nobody has postedin the last few hours.

Why not re-start the conversation?

See more of what you like onThe Student Room

You can personalise what you see on TSR. Tell us a little about yourself to get started.