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Simon's copy of Clodagh's copy of Calculate probabilities from a normal distribution
rebelmaths
Given a random variable X normally distributed as N(m,σ2) find probabilities P(X>a),a>m;P(X<b),b<m.
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England schools
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England university
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Scotland schools
Taxonomy: mathcentre
Taxonomy: Kind of activity
Taxonomy: Context
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History
Simon Thomas 5 years, 11 months ago
Created this as a copy of Clodagh's copy of Calculate probabilities from a normal distribution.There are 45 other versions that do you not have access to.
| Name | Type | Generated Value |
|---|
| units1 | string |
k Wh
|
||||
| upper | integer |
985
|
||||
| lower | integer |
815
|
||||
| p1 | number |
0.8023
|
||||
| m | integer |
900
|
||||
| s | integer |
100
|
||||
| zupper | decimal |
dec("0.85")
|
||||
| p | number |
0.8023
|
||||
| amount | string |
electricity consumption
|
||||
| p2 | number |
0.1977
|
||||
| tol | number |
0.01
|
||||
| zlower | decimal |
dec("0.85")
|
||||
| stuff | string |
a frozen foods warehouse each
|
||||
| prob2 | number |
0.20
|
||||
| prob3 | number |
0.60
|
||||
| prob1 | number |
0.20
|
Generated value: string
This variable doesn't seem to be used anywhere.
Gap-fill
Ask the student a question, and give any hints about how they should answer this part.
(i)
Find the probability that in a particular week the {amount} is less than {lower} {units1}:
Probability = ?
(ii)
Find the probability that in a particular week the {amount} is greater than {upper} {units1}:
Probability = ?
(iii)
Find the probability that in a particular week the {amount} is between {lower}{units1} and {upper} {units1}:
Probability = ?
Use this tab to check that this question works as expected.
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| Gap-fill | ||
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| Number entry | ||
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| Number entry | ||
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This question is used in the following exam: