Answer:
D - Type of restaurant - fast food or more expensive.
Step-by-step explanation:
By a lurking variable we mean or refer to any variable that is unknown and not controlled for or out of individual control. When there is one or more lurking variables in any study it could results in accidental bias. According to Soares (1985), lurking variables are intrinsic and they are not actually caused by “accidents” in real sense. Hence he suggests that “lurking-variable bias” is a more suitable name for accidental bias.
Concluding that individuals who spend a lot on groceries also spend a lot at restaurants could be misleading in the sense that, groceries may have a more uniform price than restaurant regardless of your social class. For instance, type of restaurant could determine food cost. At some restaurant, food is quite expensive at another food is quite affordable. I may not to go any groceries store in a month but I patronize restaurant to eat daily.
It is also possible I don't patronize restaurants! And yet, I am frequent at groceries store.
In real sense, what I spent at groceries might be nothing compare to what I spend at restaurant and vice versa. Hence, the possible lurking variable is type of restaurant - fast food or more expensive which is unknown and not controlled for.
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The range is the difference between the least and greatest data value
range= 65 - 37 ⇦ subtract the least value from the greatest value,
28 ⇦ will be the range of the data.
<h3>➺➺➺➺➺➺➺➺➺</h3><h3>hope it helps...</h3><h3>have a great day!!</h3><h3 />
Answer:
child tickets: 115
adult tickets: 175
Step-by-step explanation:
number of child tickets = x
number of adult tickets = y
(value of child ticket [8] * number of child tickets [x]) + (value of adult ticket [8.5] * number of adult ticket [y]) = total value (2407.50)
8x + 8.5y= 2407.50
290 (total number of tickets) = x (number of child tickets) + y (number of adult tickets)
290 = x+y
system of equations: 8x + 8.5y= 2407.50
290 = x + y
solve equation:
x = 115
y = 175