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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.
Metadata
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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
Contributors
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 |
1035
|
||||
| lower | integer |
955
|
||||
| p1 | number |
0.6915
|
||||
| m | integer |
1000
|
||||
| s | integer |
70
|
||||
| zupper | decimal |
dec("0.50")
|
||||
| p | number |
0.7389
|
||||
| amount | string |
electricity consumption
|
||||
| p2 | number |
0.2611
|
||||
| tol | number |
0.01
|
||||
| zlower | decimal |
dec("0.64")
|
||||
| stuff | string |
a frozen foods warehouse each
|
||||
| prob2 | number |
0.31
|
||||
| prob3 | number |
0.43
|
||||
| prob1 | number |
0.26
|
Generated value: string
- Statement
- "Unnamed part" - prompt
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.
| Part | Test | Passed? |
|---|---|---|
| Gap-fill | ||
| Hasn't run yet | ||
| Number entry | ||
| Hasn't run yet | ||
| Number entry | ||
| Hasn't run yet | ||
| Number entry | ||
| Hasn't run yet |
This question is used in the following exam: