We read your photo as:

The table below represents a relationship between 2 variables Q and R connected by the equation Q=aR+b, where a and b are constant. On the grid provided draw the line of best fit for the data. Use your graph to find the value of b.

Mathematics

ScanSolve AI Answer

Answer

b

b≈1.96b \approx 1.96

Huu hapa ni mwongozo wa kutatua swali hili:

a) Kuchora mstari wa best fit:

  1. Chora shoka mbili kwenye gridi uliyopewa: shoka ya mlalo (x-axis) kwa RR na shoka ya wima (y-axis) kwa QQ.
  2. Weka mizani inayofaa kwa kila shoka. Kwa mfano, kwa RR, unaweza kutumia mizani kutoka 0 hadi 0.7. Kwa QQ, unaweza kutumia mizani kutoka 0 hadi 7.
  3. Panga pointi zote zilizotolewa kwenye jedwali kwenye gridi yako:
    • (0.1,2.7)(0.1, 2.7)
    • (0.2,3.4)(0.2, 3.4)
    • (0.3,4.0)(0.3, 4.0)
    • (0.4,4.8)(0.4, 4.8)
    • (0.5,5.6)(0.5, 5.6)
    • (0.6,6.2)(0.6, 6.2)
  4. Chora mstari ulionyooka unaopita karibu na pointi zote iwezekanavyo. Hakikisha kuna idadi sawa ya pointi juu na chini ya mstari. Panua mstari huu hadi ukate shoka ya QQ.

b) Kutafuta thamani ya bb kutoka kwenye grafu:

  1. Mlinganyo uliotolewa ni Q=aR+bQ = aR + b. Katika mlinganyo huu, bb inawakilisha Q-intercept (y-intercept), ambayo ni thamani ya QQ wakati R=0R = 0.
  2. Kutoka kwenye grafu uliyochora katika sehemu (a), soma thamani ya QQ ambapo mstari wako wa best fit unakata shoka ya QQ (yaani, ambapo R=0R=0).
  3. Kutokana na data iliyotolewa, mstari wa best fit unapaswa kukata shoka ya QQ karibu na 1.96.
b≈1.96\boxed{b \approx 1.96}
Was this helpful?

Try one yourself

A new problem that tests the same skill.

Still stuck on this one?

Ask a follow-up, and the answer starts from this question.

Got a different question?Ask your own question
Handwritten step-by-step solution preview

Handwritten Step-by-Step Solution

Get this as a handwritten image on WhatsApp — like a tutor wrote it for you.

Try on WhatsApp