Answer:
a) 31% b) 48% c) 31%
Explanation:
We have the probabilities:
P(had TV) = 0.52
P(had refrigerator)=0.38
P(had both a TV and a refrigerator)=0.21
<em>a) a TV but no refrigerator </em>
P(a TV but no refrigerator) =P(TV)- P(both a TV and a refrigerator) = 0.52 - 0.21 = 0.31
<em>(b) a TV or refrigerator but not both </em>
P(a TV or refrigerator but not both) = P(TV) + P(had refrigerator) - 2×P(had both a TV and a refrigerator) = 0.52+ 0.38 - (2×0.21) = 0.48
<em>(c) neither a TV nor a refrigerator</em>
P(neither a TV nor a refrigerator) = 1 - ( P(TV) + P(had refrigerator) - P(had both a TV and a refrigerator) ) = 1- (0.52 + 0.38 - 0.21) = 0.31
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Hope this helps, Please mark as brainliest
No i cannot bcs i dont know
Answer:
In DBMS, an index is a physical structure that stores the values for a specific column in a table. An index can be used to extract specific information from data and access records within a table more quickly without having to scan the whole table.
An Index can be made up of one or more columns of a table and each index maintains a list of values within that field that are sorted in ascending or descending order. Indexes cannot be seen by the users, but they are just used to speed up the queries and improve the performance of a database application
Answer:
empathy for others
Explanation:
The Journal, Reading Psychology, written by John McCreary and Merchant Gregory, explores the relationship between reading and empathy. Controlling for gender, GPA, and reading variables were hypothesized as closely related to empathy. Reading literary fiction engages us with social and psychological complexities of life. They require us to become someone else by transporting ourselves into the situations of others and their minds. Reading some Harry Potter books, for instance, should have a similar impact. Parts of his book tested how Harry had to deal with prejudice by showing more empathy towards immigrants and homosexuals than those who knew how to read neutral passages.
