تم الحل ✓
categoryإحصاء
schoolبكالوريوس
event_available2026-07-14
السؤال
Transcribed Image Text:
Month
3
4. Requests for gun background checks in Texas in 2012 are given below. Months Jan - Dec are shown.
1
2
4
5
8
9
6
7
10
11
12
# of Gun
Background
Checks
96394
130571
122295
88867
88027
89057
93179
117318
108117
112530 149821
239956
a. Look at a scatterplot of this data.
Do you think a linear model would fit this data?
Do you think a quadratic model would fit this data?
Do you think a cubic (x³) model would fit this data?
b. Enter the x and y data in two lists in your calculator. Obtain the equation for a cubic model. Round
coefficients to 3 decimal places. Write it here:
c. Use the model to predict the number of gun background checks in Texas in December of 2012 (x=12). Did
the model predict a higher number or a lower number of background checks as compared to the actual
observed value from the table?
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