Ah, ok. Draw a line up at weight = 3.4. Check where this crosses the graph. If the cumulative frequency at that point is less than 75, then she is wrong. In this case, the cumulative frequency at that point is about 57, suggesting that only 57% of the parcels have weight less than 3.4kg, not the 75% needed for her statement to be correct.
To find the correct answer, draw a line across at cf = 75. The weight at the point where it crosses is about 5.2kg, which suggests that 75% of parcels weigh less than 5.2kg. (Not actually needed for this question, but could be useful in future questions).
Ah, ok. Draw a line up at weight = 3.4. Check where this crosses the graph. If the cumulative frequency at that point is less than 75, then she is wrong. In this case, the cumulative frequency at that point is about 57, suggesting that only 57% of the parcels have weight less than 3.4kg, not the 75% needed for her statement to be correct.
To find the correct answer, draw a line across at cf = 75. The weight at the point where it crosses is about 5.2kg, which suggests that 75% of parcels weigh less than 5.2kg. (Not actually needed for this question, but could be useful in future questions).
Thank you so much but i have more questions to ask below:
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There are 18 packets of sweets and 12 boxes of sweets in a carton. The mean number of sweets in all the 30 packets and boxes is 14 The mean number of sweets in all the 18 packets is 10 Work out the mean number of sweets in the boxes
Ah, ok. Draw a line up at weight = 3.4. Check where this crosses the graph. If the cumulative frequency at that point is less than 75, then she is wrong. In this case, the cumulative frequency at that point is about 57, suggesting that only 57% of the parcels have weight less than 3.4kg, not the 75% needed for her statement to be correct.
To find the correct answer, draw a line across at cf = 75. The weight at the point where it crosses is about 5.2kg, which suggests that 75% of parcels weigh less than 5.2kg. (Not actually needed for this question, but could be useful in future questions).
Thank you so much but i have more questions to ask below:
Attachment not found
Attachment not found
There are 18 packets of sweets and 12 boxes of sweets in a carton. The mean number of sweets in all the 30 packets and boxes is 14 The mean number of sweets in all the 18 packets is 10 Work out the mean number of sweets in the boxes
Thank you so much but i have more questions to ask below:
Attachment not found
Attachment not found
There are 18 packets of sweets and 12 boxes of sweets in a carton. The mean number of sweets in all the 30 packets and boxes is 14 The mean number of sweets in all the 18 packets is 10 Work out the mean number of sweets in the boxes
Thank you so much but i have more questions to ask below:
Attachment not found
Attachment not found
There are 18 packets of sweets and 12 boxes of sweets in a carton. The mean number of sweets in all the 30 packets and boxes is 14 The mean number of sweets in all the 18 packets is 10 Work out the mean number of sweets in the boxes