The table displays the weight progress of a puppy at the end of week 4. If the relationship between time and weight is linear, h
ow much did the puppy weigh at birth? (I got 7.0, and that's not an answer available)
A. 5.5 pounds
B. 6 pounds
C. 7.5 pounds
D. 16 pounds
A. 5.5 pounds
B. 6 pounds
C. 7.5 pounds
D. 16 pounds
2 answers:
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Since the sum of the probabilities of all possible outcomes must be 100%, we can deduce the following:
- Cooking in under 20 minutes: 10%
- Cooking between 20 and 30 minutes: 85%
- Cooking in more than 30 minutes: 5%
In fact, the probabilities of cooking in less than 20 or more than 30 sum up to 15%, which means that the remaining outcome (i.e. cooking time between 20 and 30) must complete this probability to 15, and in fact 15+85=100.
That being said, all three answers are simply a combination of these three scenarios: let C be the cooking time, for aesthetic reasons:
down 3 unit mean -3 outside root
right 2 unit mean -2 inside root,
so the answer is