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Q. 5
Expert-verifiedFor the period$1980-1998$, the table below shows the number of earthquakes with magnitudes greater than$7.0$ on the Richter scale. In 1999 there were 11 earthquakes greater than$7.0$ on the Richter scale. How did 1999 compare with the preceding years?
Higher-Magnitude Earthquakes Per Year |
18, 14, 10, 15, 8, 15, 6, 11, 8, 7, 13, 10, 23, 16, 15, 25, 22, 20, 16 |
Year | Magnitude on Richter Scale |
1980 | 18 |
1981 | 14 |
1982 | 10 |
1983 | 15 |
1984 | 8 |
1985 | 15 |
1986 | 6 |
1987 | 11 |
1988 | 8 |
1989 | 7 |
1990 | 13 |
1991 | 10 |
1992 | 23 |
1993 | 16 |
1994 | 15 |
1995 | 25 |
1996 | 22 |
1997 | 20 |
1998 | 16 |
The Histogram is,
The 1999 earthquakes falls in the interval of greater than 7.
The number of earthquakes with magnitudes greater than$7.0$ on the Richter scale are provided by the table,
Higher-Magnitude Earthquakes Per Year |
18, 14, 10, 15, 8, 15, 6, 11, 8, 7, 13, 10, 23, 16, 15, 25, 22, 20, 16 |
Make intervals of equal size for the provided data. Record the interval in which a particular data value lies by using the tally marks. For each interval, count the number of tally marks and write the frequency.
Year | Magnitude on Richter Scale |
1980 | 18 |
1981 | 14 |
1982 | 10 |
1983 | 15 |
1984 | 8 |
1985 | 15 |
1986 | 6 |
1987 | 11 |
1988 | 8 |
1989 | 7 |
1990 | 13 |
1991 | 10 |
1992 | 23 |
1993 | 16 |
1994 | 15 |
1995 | 25 |
1996 | 22 |
1997 | 20 |
1998 | 16 |
The frequency table is,
Year | Magnitude on Richter Scale |
1980 | 18 |
1981 | 14 |
1982 | 10 |
1983 | 15 |
1984 | 8 |
1985 | 15 |
1986 | 6 |
1987 | 11 |
1988 | 8 |
1989 | 7 |
1990 | 13 |
1991 | 10 |
1992 | 23 |
1993 | 16 |
1994 | 15 |
1995 | 25 |
1996 | 22 |
1997 | 20 |
1998 | 16 |
The number of earthquakes with magnitudes greater than$7.0$ on the Richter scale are provided by the table,
Higher-Magnitude Earthquakes Per Year |
18, 14, 10, 15, 8, 15, 6, 11, 8, 7, 13, 10, 23, 16, 15, 25, 22, 20, 16 |
Draw the horizontal and vertical axes. Label the intervals on the horizontal axis and the frequencies on the vertical axis.
Construct a bar chart to show the frequency of each interval.
The histogram is,
The number of earthquakes with magnitudes greater than$7.0$ on the Richter scale are provided by the table,
Higher-Magnitude Earthquakes Per Year |
18, 14, 10, 15, 8, 15, 6, 11, 8, 7, 13, 10, 23, 16, 15, 25, 22, 20, 16 |
The 1999 earthquakes fall in the interval of greater than 7.
The 1999 earthquakes fall in the interval of greater than 7.
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