A population has a mean of 50 and a standard deviation of 15- If a ran.pdf
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A population has a mean of 50 and a standard deviation of 15. If a random sample of 64 is taken, what is the probability that the sample mean is each of the following? a. Greater than 51 b. Less than 51 c. Less than 49 d. Between 47.5 and 51.5 e. Between 50.3 and 51.7? (round the values of z to 2 decimal places. e.g 15.25. round your answers to 4 decimal places. e.g 0.2513).
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statement of the address of a variable? A variable may have different addresses at different times
during execution. The same name my have different addresses at different places in a program. If
two variable names can be used to access the same memory location, they are called aliases.
Aliases are harmful to program efficiency. A type determines the range of values that a variable
can have and the set of operations that are defined for values of that type. True False
QUESTION 6 A binding is an association, such as between an attribute and an entity, or between
an operation and a symbol. A binding time is the time at which a binding takes place, and there
several possibilities including: Language design time Language implementation time Compile
time Load and linking time Runtime All of above A binding is if it first occurs before run time
and remains unchanged throughout program execution. QUESTION 8 The of a variable is the
time during which it is bound to a particular memory cell. Which storage binding scheme is
described below? Storage bindings are created for variables when their declaration statements are
elaborated. It allows recursion and conserves storage, however, it incurs overhead of allocation
and deallocation and doesn't support history sensitive variables for subprograms. Static Stack-
dynamic Explicit heap-dynamic Implicit heap-dynamic QUESTION 10 The of a variable is the
range of statements over which it is visible..
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